Cosmetic-fluid dispenser

ABSTRACT

There is provided a cosmetic-fluid dispenser comprising: an elongate main body having a cosmetic-fluid storage space defined therein to contain cosmetic fluid therein, wherein the elongate main body has a chamber body portion; a fluid-communication chamber defined in the chamber body portion in a first direction, wherein the first direction is a direction perpendicular to a longitudinal direction of the elongate main body; an actuation mechanism at least partially hollowed and insertable into the fluid-communication chamber, wherein a top thereof protrudes outside the fluid-communication chamber, and a bottom thereof is received in the fluid-communication chamber, and has a bottom inlet hole defined therein; a first vertical elastic hollow member having a lower end disposed on a bottom face of the fluid communication chamber, wherein at least a portion of an upper portion thereof is inserted into the actuation mechanism through the bottom inlet hole; a first fluid communication channel defined in the chamber body portion in a direction away from the cosmetic-fluid storage space; a second fluid communication channel defined in the chamber body portion to fluid-communicate with the cosmetic-fluid storage space; and a cosmetic-fluid outlet structure configured to communicate with the first fluid communication channel, wherein the cosmetic-fluid outlet structure has a fluid discharging hole defined in a distal end thereof and exposed to an outside of the dispenser, wherein a top of the chamber body portion has a first round concaved top portion having an opening defined therein through which the actuation mechanism passes into the chamber, wherein an outer face of the top of the actuation mechanism has a shape conformal to a round concaved shape of the round concaved top portion.

INCORPORATION BY REFERENCE

This application is based upon and claims the benefit of priority fromthe corresponding Korean Patent Application No. 10-2017-0116595 filed onSep. 12, 2017, the entire contents of which are incorporated herein byreference.

BACKGROUND Field of the Present Disclosure

Embodiments of the present disclosure relate to a cosmetic-fluiddispenser, and more particularly, to a cosmetic-fluid dispenser that iscapable of smoothly dispensing a constant amount of cosmetic-fluid.

Discussion of the Related Art

Generally, a cosmetic container has a container body storing therein acosmetic liquid and has a threaded bottleneck coupled to the body. Then,a threaded cap as a handle is coupled to the threaded bottleneck. Abrush is coupled via a long rod to an inner central lower end of thecap/handle such that the brush is immersed in the liquid in thecontainer body.

In use of the general cosmetic container constructed as described above,the cap is turned to open the bottleneck, and then the cap is removedfrom the neck. Then, the user contacts the cosmetic liquid-wetted brushwith her skin.

However, as for such a conventional cosmetic container (for example,Korean Patent No. 10-1318673), the user needs to repeatedly immerse thebrush into the liquid in the body in order to repeatedly applying thecosmetic liquid to the target skin. In this connection, since the brushhas to be repeatedly put into and drawn out of the container body,external air may be flowed into the container body and, thus, thecosmetic liquid is easily hardened.

Further, since the cosmetic liquid contains an alcohol component, and,thus, the cosmetic liquid has a strong volatility, the liquid may beeasily volatilized unless the cap is surely sealed. Therefore, as forthe conventional cosmetic container, the cap cannot maintain a reliablesealing force, and, thus, the cosmetic liquid in the cosmetic containermay be volatilized. Thus, the cosmetic liquid hardens or deteriorates.

SUMMARY

This Summary is provided to introduce a selection of concepts in asimplified form that are further described below in the DetailedDescription. This Summary is not intended to identify all key featuresor essential features of the claimed subject matter, nor is it intendedto be used alone as an aid in determining the scope of the claimedsubject matter.

The present disclosure is provide a cosmetic-fluid dispenser that iscapable of smoothly dispensing a constant amount of cosmetic-fluid.

Further, the present disclosure is provide a cosmetic-fluid dispenserwhich is always sealed to prevent deterioration and hardening of thecosmetic liquid.

Further, the present disclosure is provide a cosmetic-fluid dispenserwhich is easy to carry and which suppresses leakage of cosmetic liquidby unintended external force.

Another object of the present disclosure is to provide a cosmetic-fluiddispenser having a narrow diameter and having no portion protrudingoutwards in the width direction thereof, thereby providing a slimmer andsmaller-sized cosmetic-fluid dispenser while providing an excellentaesthetics.

It is a further object of the present disclosure to provide to provide acosmetic-fluid dispenser wherein the elastic member controlling themovement of the actuation mechanism does not contact the cosmetic liquidand unnecessary members may be omitted in the movement channel of thecosmetic liquid such that the characteristics of the cosmetic liquid maybe maintained in a non-polluted state for a long period of time.

Other objects of the present disclosure will be apparent to thoseskilled in the art from the following embodiments.

In a first aspect of the present disclosure, there is provided acosmetic-fluid dispenser comprising: an actuation mechanism configuredto enable selective dispensing of a cosmetic-fluid; a elongate main bodyhaving a main inner space defined therein and opposite first and secondend portions, wherein the main body has a first opening defined in aside portion thereof, wherein the main inner space contains therein acosmetic-fluid, wherein the actuation mechanism passes through the firstopening to enable the selective dispensing of a cosmetic-fluid; afluid-communication chamber disposed in the first end portion of theelongate main body, wherein the fluid-communication chamberfluid-communicates with the elongate main body, wherein thefluid-communication chamber is configured to cooperate with theactuation mechanism to dispense a cosmetic-fluid out of the elongatemain body; a distal cosmetic-fluid outlet structure fluid-communicatingwith the fluid-communication chamber, wherein the distal cosmetic-fluidoutlet structure is disposed out of the main body; and a cap removablycoupled to the elongate main body at the first end portion, wherein thefluid-communication chamber includes a chamber body having a cylindricalinner space defined therein, and a cosmetic-fluid outlet guide influid-communication with the chamber body, wherein a cosmetic-fluidoutlet guide is in fluid-communication with the distal cosmetic-fluidoutlet structure, wherein the chamber body has a fluid-inlet hole formedtherein, a fluid-outlet hole fluid-communicating with a cosmetic-fluidoutlet guide, and a second opening position-corresponding to the firstopening, wherein a cosmetic fluid stored in the main body flows into thecylindrical chamber through the fluid-inlet hole.

In one implementation of the first aspect, the actuation mechanism isconfigured: upon application of an external force thereto, to move in afirst direction to be at least partially inserted to the cylindricalspace in the chamber body, thereby to discharge a first volume ofcosmetic fluid contained in the cylindrical space in the chamber bodythrough the fluid-outlet hole into the cosmetic fluid outlet; uponrelease of the applied external force, to move in a second directionopposite to the first direction, thereby to enable a cosmetic fluid ofthe same volume as the first volume to flow from the main body into thechamber body through the fluid-inlet hole.

In one implementation of the first aspect, the actuation mechanismincludes: a pushed portion protruding out of the elongate main body toreceive the external force; an insertable cylinder connected to thepushed portion and passing through the first and second openings; and afirst elastic member loaded on the insertable cylinder and disposedwithin the cylindrical space in the chamber body, wherein the firstelastic member is elastically deformed via the insertable cylinder whenthe external force is applied to the pushed portion, wherein the firstelastic member is restored by an elastic restoring force when theexternal force is released.

In one implementation of the first aspect, when the external force isapplied to the pushed portion, the insertable cylinder is moved from afirst position to a second position; when the external force applied tothe pushed portion is released, the insertable cylinder is moved fromthe second position to the first position by the first elastic member,wherein when the insertable cylinder is at the second position, thefluid-inlet hole is closed to disallow flow of a cosmetic-fluid throughthe fluid-inlet hole; when the insertable cylinder is at the firstposition, the fluid-inlet hole is opened to allow flow of acosmetic-fluid through the fluid-inlet hole.

In one implementation of the first aspect, the cap further comprises afastening rib projecting from a distal end of the cap toward theactuation mechanism, wherein the actuation mechanism further comprises astep portion formed between the pushed portion and the insertablecylinder, the step portion having a diameter smaller than a diameter ofthe pushed portion, wherein the fastening rib extends toward the stepportion, wherein a distal end of the fastening rib is rounded toshape-correspond to an outer circumference of the step portion, whereinthe fastening rib protrudes toward an outer side face of the stepportion so as to support a bottom of the pushed portion thereon toprevent movement of the pushed portion.

In one implementation of the first aspect, the actuation mechanismincludes an proximal sealing ring coupled to the insertable cylinder,wherein the proximal sealing ring is configured to prevent escape of acosmetic fluid out of the cylindrical space of the chamber body when theinsertable cylinder moves from the first direction to the seconddirection or from the second direction to the first direction.

In one implementation of the first aspect, the proximal sealing ring isconfigured to prevent air flow in and out of the cylindrical space ofthe chamber body through the first opening, wherein the proximal sealingring is engaged with a proximal end of an inserted portion of theinsertable cylinder, wherein the proximal sealing ring projects furtheroutwardly than an outer diameter of an extension portion between aproximal end and a distal end of an inserted portion of the insertablecylinder.

In one implementation of the first aspect, the extension portion has adiameter substantially equal to a diameter of the cylindrical spacedefined in the chamber body, and each of the proximal end and the distalend of an inserted portion has a diameter smaller than the diameter ofthe extension portion, wherein in the movement of the cylinder, theproximal sealing ring is compressed by a cylindrical inner wall of thechamber body to have a diameter substantially equal to a diameter of thecylindrical space of the chamber body.

In one implementation of the first aspect, the actuation mechanismfurther includes a distal sealing ring coupled to the insertablecylinder, wherein the distal sealing ring slides along and on thecylindrical inner wall of the chamber body when the insertable cylindermoves from the first direction to the second direction or from thesecond direction to the first direction.

In one implementation of the first aspect, the distal sealing ring isengaged with the distal end of the inserted portion of the insertablecylinder, wherein the distal sealing ring further projects outwardlybeyond the diameter of the extension portion between the proximal anddistal ends of the inserted portion of the insertable cylinder, wherein,in the movement of the cylinder, the distal sealing ring is compressedby the inner wall of the chamber body to have a diameter substantiallythe same as the diameter of the cylindrical space of the chamber body.

In one implementation of the first aspect, the dispenser furthercomprises a compressing member disposed in the main inner space of theelongate main body, wherein the compressing member is configured todivide the main inner space into a first inner sub-space and a secondinner sub-space, wherein a cosmetic-fluid is stored in the first innersub-space defined between the compressing member and thefluid-communication chamber.

In one implementation of the first aspect, when the external forceapplied to the actuation mechanism is released such that a cosmeticfluid of the first volume from the cosmetic fluid stored in the firstinner sub-space passes through the fluid-inlet hole into the cylindricalspace, the compressing member is displaced in a sliding manner along andon an inner face of the elongate main body such that a volume of thefirst inner sub-space is reduced by the first volume.

In one implementation of the first aspect, the dispenser furthercomprises a sealing cap passing through and sealing the second end ofthe elongate main body, wherein the second inner sub-space is definedbetween the compressing member and the sealing cap, wherein when avolume of the first inner sub-space is reduced by the first volume, avolume of the second inner sub-space is expanded by the first volume.

In one implementation of the first aspect, the distal cosmetic-fluidoutlet structure includes: an outlet hole formed in a downstream regionthereof for discharging a cosmetic-fluid; and an inserted portion formedin an upstream region thereof and inserted into a distal end of thecosmetic-fluid outlet guide.

In one implementation of the first aspect, when the inserted portion isinserted into the distal end of the cosmetic-fluid outlet guide, aspacing is defined between an outer peripheral surface of the insertedportion and an inner peripheral surface of the cosmetic-fluid outletguide.

In one implementation of the first aspect, the inserted portion has afirst inserted sub-portion, a second inserted sub-portion, and ahole-opening/closing member, wherein the first inserted sub-portiondefines therein a first fluid-communication channel influid-communication with the outlet hole, wherein the first insertedsub-portion has a first fluid-communication hole defined therein toallow fluid-communication between the first fluid-communication channeland the spacing, wherein the second inserted sub-portion defines thereina second fluid-communication channel in fluid-communication with thefluid-outlet hole, wherein the second inserted sub-portion has a secondfluid-communication hole defined therein to allow fluid-communicationbetween the second fluid-communication channel and the spacing, whereinthe hole-opening/closing member is constructed to surround the secondfluid-communication hole and to control flow of a cosmetic-fluid throughthe second fluid-communication hole.

In one implementation of the first aspect, when an external force isapplied to the actuation mechanism, the hole-opening/closing member iselastically deformed via a pressure generated by a cosmetic-fluid movingtoward the distal end of a cosmetic-fluid outlet guide through thefluid-outlet hole, thereby to open the second fluid-communication hole,wherein when the external force applied to the actuation mechanism isreleased such that the pressure is weakened, the hole-opening/closingmember is restored by an elastic restoring force, thereby to close thesecond fluid-communication hole.

In one implementation of the first aspect, a removable cosmetic-fluidstorage unit is removably received in the main inner space of the mainbody.

In one implementation of the first aspect, the removable cosmetic-fluidstorage unit includes: a removable elongate body having an elongateinner space therein, wherein the removable elongate body is removablyinserted into the inner space of the elongate main body; a compressingmember disposed in the elongate inner space to divide the elongate innerspace of the removable elongate body into a first inner sub-space and asecond inner sub-space; and a sealing cap configured to seal the innerspace of the removable elongate body and the second end of the elongatemain body, wherein a cosmetic-fluid is stored in the first innersub-space defined between the compressing member and the chamber body ofthe fluid-communication chamber, wherein when the external force appliedto the actuation mechanism is released so that a cosmetic-fluid of thefirst-volume from a cosmetic-fluid stored in the first inner sub-spacepasses through the fluid-inlet hole into the cylindrical space of thechamber body, the compressing member is displaced in a sliding manneralong and on an inner face of the removable elongate body so that avolume of the first inner sub-space is reduced by the first volume.

In second aspect of the present disclosure, there is provided acosmetic-fluid dispenser comprising: an actuation mechanism configuredto enable selective dispensing of a cosmetic-fluid; a elongate main bodyhaving a main inner space defined therein and opposite first and secondend portions, wherein the main body has a first opening defined in aside portion thereof, wherein the main inner space contains therein acosmetic-fluid, wherein the actuation mechanism passes through the firstopening to enable the selective dispensing of a cosmetic-fluid; afluid-communication chamber disposed in the first end portion of theelongate main body, wherein the fluid-communication chamberfluid-communicates with the elongate main body, wherein thefluid-communication chamber is configured to cooperate with theactuation mechanism to dispense a cosmetic-fluid out of the elongatemain body; a distal cosmetic-fluid outlet structure fluid-communicatingwith the fluid-communication chamber, wherein the distal cosmetic-fluidoutlet structure is disposed out of the main body; and a cap removablycoupled to the elongate main body at the first end portion, wherein thefluid-communication chamber includes a chamber body having a cylindricalinner space defined therein, and a cosmetic-fluid outlet guide influid-communication with the chamber body, wherein a cosmetic-fluidoutlet guide is in fluid-communication with the distal cosmetic-fluidoutlet structure, wherein the chamber body has a fluid-inlet hole formedtherein, a fluid-outlet hole fluid-communicating with a cosmetic-fluidoutlet guide, and a second opening position-corresponding to the firstopening, wherein a cosmetic fluid stored in the main body flows into thecylindrical chamber through the fluid-inlet hole, wherein thefluid-communication chamber further includes: a hollow cosmetic-fluidinlet guide having a proximal portion in fluid-communication with thefluid-inlet hole and a distal portion protruding into the main innerspace of the main body; a hole-opening/closing member elastic supportreceived in a cosmetic-fluid inlet guide and configured to support ahole-opening/closing member; the hole-opening/closing member disposed ata distal end of the hole-opening/closing member elastic support; and ahollow elongate cover surrounding the distal portion of a cosmetic-fluidinlet guide, wherein the hollow elongate cover has first and secondholes defined in proximal and distal ends thereof respectively, whereina portion of the cover contacting the hole-opening/closing member has atruncated cone shape.

In one implementation of the second aspect, the actuation mechanism isconfigured: upon application of an external force thereto, to move in afirst direction to be at least partially inserted to the cylindricalspace in the chamber body, thereby to discharge a first volume ofcosmetic fluid contained in the cylindrical space in the chamber bodythrough the fluid-outlet hole into the cosmetic fluid outlet; uponrelease of the applied external force, to move in a second directionopposite to the first direction, thereby to enable a cosmetic fluid ofthe same volume as the first volume to flow from the main body into thechamber body through the fluid-inlet hole.

In one implementation of the second aspect, the actuation mechanismincludes: a pushed portion protruding out of the elongate main body toreceive the external force; an insertable cylinder connected to thepushed portion and passing through the first and second openings; and afirst elastic member loaded on the insertable cylinder and disposedwithin the cylindrical space in the chamber body, wherein the firstelastic member is elastically deformed via the insertable cylinder whenthe external force is applied to the pushed portion, wherein the firstelastic member is restored by an elastic restoring force when theexternal force is released.

In one implementation of the second aspect, when the external force isapplied to the pushed portion, the insertable cylinder is moved from afirst position to a second position; when the external force applied tothe pushed portion is released, the insertable cylinder is moved fromthe second position to the first position by the first elastic member,wherein when the insertable cylinder is at the second position, thesecond hole is closed via the hole-opening/closing member beingpressured by the hole-opening/closing member elastic support, thereby todisallow flow of a cosmetic-fluid through the fluid-inlet hole, whereinwhen the insertable cylinder is at the first position, the second holeis opened to allow flow of a cosmetic-fluid through the fluid-inlethole.

In one implementation of the second aspect, the cap further comprises afastening rib projecting from a distal end of the cap toward theactuation mechanism, wherein the actuation mechanism further comprises astep portion formed between the pushed portion and the insertablecylinder, the step portion having a diameter smaller than a diameter ofthe pushed portion, wherein the fastening rib extends toward the stepportion, wherein a distal end of the fastening rib is rounded toshape-correspond to an outer circumference of the step portion, whereinthe fastening rib protrudes toward an outer side face of the stepportion so as to support a bottom of the pushed portion thereon toprevent movement of the pushed portion.

In one implementation of the second aspect, a proximal end of thecosmetic-fluid inlet guide has a diameter larger than a diameter of thefluid-inlet hole so as to surround the fluid-inlet hole, wherein adiameter of the first hole of the hollow elongate cover is greater thana diameter of the second hole thereof, wherein a distal end of thehollow elongate cover has a truncated cone shape.

In one implementation of the second aspect, the hole-opening/closingmember elastic support includes a spring received in the cosmetic-fluidinlet guide, wherein the hole-opening/closing member is disposed at thedistal end of the hole-opening/closing member elastic support and has aspherical shape, wherein the hole-opening/closing member is configuredto reversibly open and close the second hole of the hollow elongatecover via a force exerted by the hole-opening/closing member elasticsupport.

In one implementation of the second aspect, a first fastening structureis formed on and along an outer circumference of the cosmetic-fluidinlet guide, and a second fastening structure is formed on and along aninner circumference of the hollow elongate cover, wherein via engagementbetween the first fastening structure and the second fasteningstructure, the hollow elongate cover is tightly coupled to thecosmetic-fluid inlet guide, wherein the cosmetic-fluid inlet guide isinserted into the hollow elongate cover such that the fluid-inlet holeand the second hole of the hollow elongate cover are arranged so as tofluid-communicate with each other.

In one implementation of the second aspect, the actuation mechanismincludes an proximal sealing ring coupled to the insertable cylinder,wherein the proximal sealing ring is configured to prevent escape of acosmetic fluid out of the cylindrical space of the chamber body when theinsertable cylinder moves from the first direction to the seconddirection or from the second direction to the first direction.

In one implementation of the second aspect, the proximal sealing ring isconfigured to prevent air flow in and out of the cylindrical space ofthe chamber body through the first opening, wherein the proximal sealingring is engaged with a proximal end of an inserted portion of theinsertable cylinder, wherein the proximal sealing ring projects furtheroutwardly than an outer diameter of an extension portion between aproximal end and a distal end of an inserted portion of the insertablecylinder.

In one implementation of the second aspect, the extension portion has adiameter substantially equal to a diameter of the cylindrical spacedefined in the chamber body, and each of the proximal end and the distalend of an inserted portion has a diameter smaller than the diameter ofthe extension portion, wherein in the movement of the cylinder, theproximal sealing ring is compressed by a cylindrical inner wall of thechamber body to have a diameter substantially equal to a diameter of thecylindrical space of the chamber body.

In one implementation of the second aspect, the actuation mechanismfurther includes a distal sealing ring coupled to the insertablecylinder, wherein the distal sealing ring slides along and on thecylindrical inner wall of the chamber body when the insertable cylindermoves from the first direction to the second direction or from thesecond direction to the first direction.

In one implementation of the second aspect, the distal sealing ring isengaged with the distal end of the inserted portion of the insertablecylinder, wherein the distal sealing ring further projects outwardlybeyond the diameter of the extension portion between the proximal anddistal ends of the inserted portion of the insertable cylinder, wherein,in the movement of the cylinder, the distal sealing ring is compressedby the inner wall of the chamber body to have a diameter substantiallythe same as the diameter of the cylindrical space of the chamber body.

In one implementation of the second aspect, the dispenser furthercomprises a compressing member disposed in the main inner space of theelongate main body, wherein the compressing member is configured todivide the main inner space into a first inner sub-space and a secondinner sub-space, wherein a cosmetic-fluid is stored in the first innersub-space defined between the compressing member and thefluid-communication chamber.

In one implementation of the second aspect, when the external forceapplied to the actuation mechanism is released such that a cosmeticfluid of the first volume from the cosmetic fluid stored in the firstinner sub-space passes through the hollow fluid inlet guide and thefluid-inlet hole into the cylindrical space, the compressing member isdisplaced in a sliding manner along and on an inner face of the elongatemain body such that a volume of the first inner sub-space is reduced bythe first volume.

In one implementation of the second aspect, the dispenser furthercomprises a sealing cap passing through and sealing the second end ofthe elongate main body, wherein the second inner sub-space is definedbetween the compressing member and the sealing cap, wherein when avolume of the first inner sub-space is reduced by the first volume, avolume of the second inner sub-space is expanded by the first volume.

In one implementation of the second aspect, the sealing cap has anair-communication hole defined therein, wherein the air-communicationhole allows air-communication between the second inner sub-space and anexterior space of the cosmetic-fluid dispenser, wherein theair-communication hole defines a channel through which, when the secondinner sub-space is expanded by the first volume, an outside air of thesame volume as the first volume flows into the second inner sub-space.

In one implementation of the second aspect, the distal cosmetic-fluidoutlet structure includes: an outlet hole formed in a downstream regionthereof for discharging a cosmetic-fluid; and an inserted portion formedin an upstream region thereof and inserted into a distal end of thecosmetic-fluid outlet guide, wherein when the inserted portion isinserted into the distal end of the cosmetic-fluid outlet guide, aspacing is defined between an outer peripheral surface of the insertedportion and an inner peripheral surface of the cosmetic-fluid outletguide.

In one implementation of the second aspect, the inserted portion has afirst inserted sub-portion, a second inserted sub-portion, and ahole-opening/closing member, wherein the first inserted sub-portiondefines therein a first fluid-communication channel influid-communication with the outlet hole, wherein the first insertedsub-portion has a first fluid-communication hole defined therein toallow fluid-communication between the first fluid-communication channeland the spacing, wherein the second inserted sub-portion defines thereina second fluid-communication channel in fluid-communication with thefluid-outlet hole, wherein the second inserted sub-portion has a secondfluid-communication hole defined therein to allow fluid-communicationbetween the second fluid-communication channel and the spacing, whereinthe hole-opening/closing member is constructed to surround the secondfluid-communication hole and to control flow of a cosmetic-fluid throughthe second fluid-communication hole.

In one implementation of the second aspect, when an external force isapplied to the actuation mechanism, the hole-opening/closing member iselastically deformed via a pressure generated by a cosmetic-fluid movingtoward the distal end of a cosmetic-fluid outlet guide through thefluid-outlet hole, thereby to open the second fluid-communication hole,wherein when the external force applied to the actuation mechanism isreleased such that the pressure is weakened, the hole-opening/closingmember is restored by an elastic restoring force, thereby to close thesecond fluid-communication hole.

In one implementation of the second aspect, a removable cosmetic-fluidstorage unit is removably received in the main inner space of the mainbody.

In one implementation of the second aspect, the removable cosmetic-fluidstorage unit includes: a removable elongate body having an elongateinner space therein, wherein the removable elongate body is removablyinserted into the inner space of the elongate main body; a compressingmember disposed in the elongate inner space to divide the elongate innerspace of the removable elongate body into a first inner sub-space and asecond inner sub-space; and a sealing cap configured to seal the innerspace of the removable elongate body and the second end of the elongatemain body.

In one implementation of the second aspect, a cosmetic-fluid is storedin the first inner sub-space defined between the compressing member andthe chamber body of the fluid-communication chamber, wherein when theexternal force applied to the actuation mechanism is released so that acosmetic-fluid of the first-volume from a cosmetic-fluid stored in thefirst inner sub-space passes through the fluid-inlet hole into thecylindrical space of the chamber body, the compressing member isdisplaced in a sliding manner along and on an inner face of theremovable elongate body so that a volume of the first inner sub-space isreduced by the first volume.

In one implementation of the second aspect, the distal cosmetic-fluidoutlet structure includes: an outlet hole formed in a downstream regionthereof for discharging a cosmetic-fluid; and an inserted portion formedin an upstream region thereof and inserted into a distal end of thecosmetic-fluid outlet guide, wherein the outlet hole has anelliptical-shaped cross-section, wherein an inner diameter of an distalend portion of the cosmetic-fluid outlet guide is larger than an innerdiameter of a middle extension portion of the cosmetic-fluid outletguide, wherein the inserted portion of the distal cosmetic-fluid outletstructure is inserted into the distal end portion of the cosmetic-fluidoutlet guide.

In one implementation of the first and/or second aspect, the dispenserfurther comprises a second elastic member disposed between an outerperipheral surface of the inserted portion of the distal cosmetic-fluidoutlet structure, and an inner peripheral surface of the distal endportion of the cosmetic-fluid outlet guide; and an outlet-control balldisposed at a proximal end of the second elastic member, wherein theoutlet-control ball has a larger diameter than a diameter of the middleextension portion of the cosmetic-fluid outlet guide.

In one implementation of the first and/or second aspect, when anexternal force is applied to the actuation mechanism, the outlet-controlball is subjected to a pressure generated by the cosmetic-fluid movingtoward the distal end of the cosmetic-fluid outlet guide through thefluid-outlet hole, and, thus, is moved in a third direction, wherein thethird direction is perpendicular to the first direction or seconddirection, wherein the third direction is a direction going away fromthe cylindrical space, wherein when the pressure generated by thecosmetic-fluid is weakened, the outlet-control ball is moved by thesecond elastic member in a fourth direction opposite to the thirddirection, thereby to close a further inlet hole defined in a boundaryregion between the distal end portion and the middle extension portionof the cosmetic-fluid outlet guide.

In a third aspect of the present disclosure, there is provided acosmetic-fluid dispenser comprising: an elongate main body having acosmetic-fluid storage space defined therein to contain cosmetic fluidtherein, wherein the elongate main body has a chamber body portion; afluid-communication chamber defined in the chamber body portion in afirst direction, wherein the first direction is a directionperpendicular to a longitudinal direction of the elongate main body; anactuation mechanism at least partially hollowed and insertable into thefluid-communication chamber, wherein a top thereof protrudes outside thefluid-communication chamber, and a bottom thereof is received in thefluid-communication chamber, and has a bottom inlet hole definedtherein; a first vertical elastic hollow member having a lower enddisposed on a bottom face of the fluid communication chamber, wherein atleast a portion of an upper portion thereof is inserted into theactuation mechanism through the bottom inlet hole; a first fluidcommunication channel defined in the chamber body portion in a directionaway from the cosmetic-fluid storage space; a second fluid communicationchannel defined in the chamber body portion to fluid-communicate withthe cosmetic-fluid storage space; and a cosmetic-fluid outlet structureconfigured to communicate with the first fluid communication channel,wherein the cosmetic-fluid outlet structure has a fluid discharging holedefined in a distal end thereof and exposed to an outside of thedispenser, wherein a top of the chamber body portion has a first roundconcaved top portion having an opening defined therein through which theactuation mechanism passes into the chamber, wherein an outer face ofthe top of the actuation mechanism has a shape conformal to a roundconcaved shape of the round concaved top portion.

In one implementation of the third aspect, the cosmetic-fluid dispenserfurther comprise: an inner cap coupled to one longitudinal end of theelongate main body, the inner cap having a second round concaved topportion corresponding in position to the first round concaved top andhaving a shape conformal to the shape of the first round concaved topportion, wherein the second round concaved top portion has an openingdefined therein through which the actuation mechanism passes into thechamber; an outer cap having a receiving space for receiving the distalcosmetic-fluid outlet structure, wherein the outer cap is removablyengaged with the inner cap, wherein the receiving space is defined as acylindrical hollow inner space for partially receiving the inner cap.

In one implementation of the third aspect, wherein each of the first andsecond fluid communication channels extends in a second direction,wherein the second direction is the longitudinal direction of theelongate main body, wherein a hollow cylindrical tube has an innerdiameter greater than an diameter of the second fluid communicationchannel, and the hollow cylindrical tube protrudes from an outer face ofthe chamber body portion into the fluid storage space defined in themain body, wherein a hollow cover portion is partially fitted into thehollow cylindrical tube and has a first opening defined at a proximalend thereof communicating with the second fluid communication channel,and has a second opening defined at a distal end thereof communicatingwith the fluid storage space, wherein closing/opening means isconfigured to reversibly open and close the second opening defined inthe cover portion, wherein the closing/opening means is disposed in thecover portion and is movable, wherein a closing/opening means stopperhas an annular shape and protrudes inwardly from an inner circumferenceof the cover portion to limit movement of the closing/opening means.

In one implementation of the third aspect, the cover portion has anouter portion disposed out of the hollow cylindrical tube, wherein theouter portion defines the second opening defined therein, wherein theouter portion has a hollow truncated conical shape.

In one implementation of the third aspect, wherein the hollowcylindrical tube has an annular groove defined in the inner face thereofwhile the cover portion has an annular protrusion defined on an outerface thereof, wherein the annular protrusion is engaged into the annualgroove; alternatively, the hollow cylindrical tube has an annularprotrusion defined on the inner face thereof while the cover portion hasan annular groove defined in an outer face thereof, wherein the annularprotrusion is engaged into the annual groove; and wherein the innerspace of the hollow cylindrical tube is configured to fluid-communicatewith the second fluid communication channel and to fluid-communicatewith the second opening of the cover portion.

In one implementation of the third aspect, wherein the first elasticmember is configured such that elastic deformation of the first elasticmember allows up and down movements of the actuation mechanism to bereversible, wherein when an external force is applied to the actuationmechanism, a first volume of cosmetic fluid contained in thefluid-communication chamber flows through the first fluid communicationchannel into the cosmetic-fluid outlet structure, wherein when theexternal force applied to the actuation mechanism is released, cosmeticfluid of an amount equal to the first volume flows from thecosmetic-fluid storage space through the second fluid communicationchannel into the fluid-communication chamber.

In one implementation of the third aspect, wherein the actuationmechanism includes: a hollow piston portion formed in a cylindricalshape to be inserted into the fluid-communication chamber, wherein thehollow piston portion has a bottom inlet hole defined in a bottomportion thereof, wherein the hollow piston portion has a fluid receivingspace defined therein; a head support portion extending upward from thehollow piston portion, wherein the head support portion has an outerdiameter smaller than an outer diameter of the hollow piston portion andis formed in a cylindrical shape and has a hole defined in a top portionthereof; a head including: a pressed portion to which external force isapplied and which is exposed out of the fluid-communication chamber; andan inserted rib which extends from a bottom of the pressed portion andis inserted into the hole defined in the head support portion; and firstand second sealing rings spaced apart from each other in a verticaldirection and disposed around an outer surface of the hollow pistonportion.

In one implementation of the third aspect, wherein the hollow pistonportion has first and second lateral through-holes defined therein inopposite lateral points of the hollow piston portion respectively,wherein the first and second lateral through-holes communicate with thebottom inlet hole and the inner receiving space of the hollow pistonportion, wherein the first and second lateral through-holes communicatewith the first and second fluid communication channels respectively,wherein the first sealing ring surrounds a lower portion of an outerperiphery of the hollow piston portion, while the second sealing ringsurrounds an upper portion of the outer periphery of the hollow pistonportion, wherein both of the first and second lateral through-holes aredefined between the first and second sealing rings in a verticaldirection, wherein each of the first and second lateral through-holesextends horizontally.

In one implementation of the third aspect, wherein the first fluidcommunication channel communicates with the fluid outlet structure,wherein the second fluid communication channel communicates with thefluid storage space defined in the main body, wherein each of the firstand second fluid communication channels extends in a second direction,wherein the second direction is the longitudinal direction of theelongate main body, wherein when external force is applied to theactuation mechanism, the first elastic member is compressed in acompressed mode such that the piston portion is lowered, and, thus,cosmetic fluid contained within the inner fluid receiving space of thehollow piston portion flows through the first lateral through-hole andthen through the first fluid communication channel, wherein at thecompressed mode, the first fluid communication channel and the secondfluid communication channel are positioned between the first and thesecond sealing rings at a height level thereof, wherein when theexternal force applied to the actuation mechanism is released, the firstelastic member is restored at a restored mode such that the pistonportion rises up in the fluid-communication chamber, and, thus, cosmeticfluid flows from the fluid storage space of the main body through thesecond fluid communication channel and then the second lateralthrough-hole into the inner fluid receiving space of the hollow pistonportion.

In one implementation of the third aspect, wherein when the pistonportion is lowered down or raised up, the first sealing ring slidesalong an inner circumferential face of the fluid-communication chamber,wherein when the piston portion is lowered down or raised up, the secondsealing ring slides along an inner circumferential face of thefluid-communication chamber to prevent the cosmetic fluid contained inthe fluid-communication chamber from flowing out of thefluid-communication chamber, wherein the first and second sealing ringsare spaced apart from each other in a vertical direction, therebypreventing air from flowing into the fluid-communication chamber.

In one implementation of the third aspect, wherein the cosmetic-fluiddispenser comprises an elongate fluid-supply tube detachably insertedinto the inner space of the elongate main body, wherein the elongatefluid-supply tube has an elongate inner space defined therein, whereinthe inner space of the elongate fluid-supply tube is partitioned into afirst inner sub-space and a second inner sub-space, wherein volumes ofthe first inner sub-space and the second inner sub-space vary reversiblyin a complementary manner to each other, wherein the first innersub-space contains therein the cosmetic fluid to be delivered into thefluid-communication chamber, while the second sub-space contains thereinair flowing from an outside of the dispenser, wherein when externalforce applied to the actuation mechanism is released, a first volume ofcosmetic-fluid stored in the first inner sub-space passes through thesecond fluid-communication channel into the fluid communication chamber,and, at the same time, the volume of the first inner sub-space isreduced by the first volume while the volume of the second innersub-space is expanded by the first volume.

In one implementation of the third aspect, wherein an O-ring is providedon an outer face of a first longitudinal end of the cosmetic elongatefluid-supply tube, while an annular groove into which the O-ring isseated is defined in an inner face of the elongate main body such thatthe cosmetic elongate fluid-supply tube and the elongate main body aretightly coupled to each other, wherein the first longitudinal end facesthe chamber body portion, wherein a second longitudinal end of thecosmetic elongate fluid-supply tube is air-tightly blocked by a blockingportion having an air communication channel defined therein.

In one implementation of the third aspect, wherein the cosmetic-fluiddispenser comprises an elongate fluid-supply tube detachably insertedinto the inner space of the elongate main body, wherein the elongatefluid-supply tube has an elongate inner space defined therein, whereinthe inner space of the elongate fluid-supply tube is partitioned into afirst inner sub-space and a second inner sub-space by a compressingmember, wherein volumes of the first inner sub-space and the secondinner sub-space vary reversibly in a complementary manner to each other,wherein the first inner sub-space contains therein the cosmetic fluid tobe delivered into the fluid-communication chamber, while the secondsub-space contains therein air flowing from an outside of the dispenser,wherein the cosmetic elongate fluid-supply tube has a first longitudinalend facing the chamber body portion, wherein the cosmetic elongatefluid-supply tube has a sealing cap defining a second longitudinal endof the cosmetic elongate fluid-supply tube, wherein the secondlongitudinal end is opposite the first longitudinal end, wherein thesealing cap is tightly inserted into an opening in the secondlongitudinal end, wherein the sealing cap has an air communicationchannel defined therein communicating with the second inner sub-space,wherein the second inner sub-space is defined between the compressingmember and the sealing cap, wherein the volume of the first innersub-space is reduced by a first volume via movement of the compressingmember toward the first longitudinal end together with compressing thefluid in the first sub-space while the volume of the second innersub-space is forcedly expanded by the first volume via theair-communication hole allowing air-communication between the secondinner sub-space and an exterior space of the cosmetic-fluid dispenser.

In one implementation of the third aspect, wherein the cosmetic-fluidoutlet structure includes: a distal portion defining a downstreamportion of the cosmetic-fluid outlet structure, wherein the distalportion has a fluid discharging hole in a tip end thereof fordischarging the cosmetic-fluid, wherein the fluid discharging hole isout of the inner cap; and a proximal portion defining an upstreamportion of the cosmetic-fluid outlet structure, wherein the proximalportion is inserted into an inner elongate space defined in the innercap, wherein the proximal portion has a first inserted portionconnecting the distal portion and a second inserted portion facing thefirst fluid communication channel, wherein a blocking partition isformed between the first and second inserted portions, wherein anelongate spacing is defined between an outer face of the proximalportion and an inner face of the inner elongate space defined in theinner cap, wherein a first fluid-communication space is defined in thefirst inserted portion to be in communication with the fluid discharginghole, wherein the first inserted portion has a first hole definedtherein for fluid communication between the first fluid-communicationspace and the elongate spacing, wherein the second inserted portion hasa second fluid-communication space defined therein in communication withthe first fluid communication channel, wherein the second insertedportion has a second hole defined therein for fluid-communicationbetween the second fluid-communication space and the elongate spacing,wherein hole closing/opening means is disposed in the elongate spacingand is configured to open or close the second hole to control flow ofthe cosmetic fluid through the second hole.

In one implementation of the third aspect, wherein when the externalforce is applied to the actuation mechanism, the hole closing/openingmeans is elastically deformed by a pressure resulting from the cosmeticfluid moving from the fluid communication chamber toward a distal end ofthe first fluid communication channel, thereby to open the second hole,wherein when the pressure is deactivated, the hole closing/opening meansis elastically restored via a restoring force thereof, thereby to closethe second hole.

In one implementation of the third aspect, wherein the cosmetic-fluidoutlet structure includes: a distal portion defining a downstreamportion of the cosmetic-fluid outlet structure, wherein the distalportion has a fluid discharging hole in a tip end thereof fordischarging the cosmetic-fluid, wherein the fluid discharging hole isout of the inner cap; and a proximal portion defining an upstreamportion of the cosmetic-fluid outlet structure, wherein the proximalportion is hollow and is inserted into an inner elongate slot defined inthe inner cap, wherein the inner elongate slot communicates with thefirst fluid communication channel, and the inner elongate slot has aninner diameter larger than an inner diameter of the first fluidcommunication channel, wherein a fluid-outlet adjustment ball is movablydisposed in the hollow proximal end toward a distal end of the firstfluid communication channel, wherein the fluid-outlet adjustment ballhas a diameter greater than an inner diameter of the first fluidcommunication channel, wherein a second elastic member is disposed inthe hollow proximal end in a downstream region of the fluid-outletadjustment ball.

In one implementation of the third aspect, wherein when the externalforce is applied to the actuation mechanism, the cosmetic fluidcontained in the fluid communication chamber moves through the firstfluid communication channel toward the elongate slot to forcedly movethe fluid-outlet adjustment ball toward the fluid discharging hole,thereby to compress the second elastic member, thereby to allow thecosmetic fluid to be discharged through the fluid discharging hole,wherein when the cosmetic fluid depressurizes the fluid-outletadjustment ball, the fluid-outlet adjustment ball moves to close thedistal end of the first fluid communication channel via a restoringforce of the second elastic member.

In a fourth aspect of the present disclosure, there is provided acosmetic-fluid dispenser comprising: an elongate main body having acosmetic-fluid storage space defined therein to contain cosmetic fluidtherein, wherein the elongate main body has a chamber body portion; afluid-communication chamber defined in the chamber body portion in afirst direction, wherein the first direction is a directionperpendicular to a longitudinal direction of the elongate main body; anactuation mechanism at least partially hollowed and insertable into thefluid-communication chamber, wherein a top thereof protrudes outside thefluid-communication chamber, and a bottom thereof is received in thefluid-communication chamber, and has a bottom inlet hole definedtherein; a first vertical elastic hollow member extending along andsurrounding an upper portion of the actuation mechanism, wherein thefirst vertical elastic hollow member allows reversible vertical movementof the actuation mechanism; a first fluid communication channel definedin the chamber body portion in a direction away from the cosmetic-fluidstorage space; a second fluid communication channel defined in thechamber body portion to fluid-communicate with the cosmetic-fluidstorage space; and a cosmetic-fluid outlet structure configured tocommunicate with the first fluid communication channel, wherein thecosmetic-fluid outlet structure has a fluid discharging hole defined ina distal end thereof and exposed to an outside of the dispenser, whereina top of the chamber body portion has a first round concaved top portionhaving an opening defined therein through which the actuation mechanismpasses into the chamber, wherein an outer face of the top of theactuation mechanism has a shape conformal to a round concaved shape ofthe round concaved top portion, wherein the actuation mechanismincludes: a hollow piston portion formed in a cylindrical shape to beinserted into the fluid-communication chamber, wherein the hollow pistonportion has the bottom inlet hole defined in a bottom portion thereof,wherein the hollow piston portion has a fluid receiving space definedtherein; a head support portion extending upward from the hollow pistonportion and having an outer diameter smaller than an outer diameter ofthe hollow piston portion; and a head supported by the head supportportion, wherein the first vertical elastic hollow member has a top endcontacting the head.

In one implementation of the fourth aspect, wherein the head includes: apressed portion to which an external force is applied and which isexposed out of the fluid-communication chamber; and an inserted ribextending downwards from a bottom of the pressed portion, wherein thepressed portion includes: a cap-shaped portion being circular in a crosssection and being open at a bottom thereof, and being hollow and havinga blocked top; and an annular rib protruding outward along a rim of abottom end of the cap-shaped portion, wherein the annular rib defines abottom opening of the cap-shaped portion and bears against an uppermostinner face of the fluid-communication chamber, wherein the inserted ribprotrudes downward from an inner central position of the cap-shapedportion, wherein a first engaging protrusion protrudes horizontally froman outer face of the inserted rib, wherein the head support portion hasa rib receiving hole defined in a top thereof through which the insertedrib is inserted, wherein a first engaged groove is defined radiallyoutwards in an inner face of the rib receiving hole and receives thereinthe first engaging protrusion.

In one implementation of the fourth aspect, wherein the actuationmechanism includes first and second sealing rings spaced apart from eachother in a vertical direction, wherein the first and second sealingrings are disposed around an outer surface of the hollow piston portion,wherein the hollow piston portion has first and second lateralthrough-holes defined therein in opposite lateral points of the hollowpiston portion respectively, wherein the first and second lateralthrough-holes communicate with the bottom inlet hole and the innerreceiving space of the hollow piston portion, wherein the first andsecond lateral through-holes communicate with the first and second fluidcommunication channels respectively, wherein both of the first andsecond lateral through-holes are defined between the first and secondsealing rings in a vertical direction, wherein each of the first andsecond lateral through-holes extends horizontally.

In one implementation of the fourth aspect, wherein the first fluidcommunication channel communicates with the fluid outlet structure,wherein the second fluid communication channel communicates with thefluid storage space defined in the main body, wherein each of the firstand second fluid communication channels extends in a second direction,wherein the second direction is the longitudinal direction of theelongate main body, wherein when external force is applied to theactuation mechanism, the first elastic member is compressed in acompressed mode such that the piston portion is lowered, and, thus,cosmetic fluid contained within the inner fluid receiving space of thehollow piston portion flows through the first lateral through-hole andthen through the first fluid communication channel, wherein at thecompressed mode, the first fluid communication channel and the secondfluid communication channel are positioned between the first and thesecond sealing rings at a height level thereof, wherein when theexternal force applied to the actuation mechanism is released, the firstelastic member is restored at a restored mode such that the pistonportion rises up in the fluid-communication chamber, and, thus, cosmeticfluid flows from the fluid storage space of the main body through thesecond fluid communication channel and then the second lateralthrough-hole into the inner fluid receiving space of the hollow pistonportion.

In one implementation of the fourth aspect, wherein when the pistonportion is lowered down or raised up, the first sealing ring slidesalong an inner circumferential face of the fluid-communication chamber,wherein when the piston portion is lowered down or raised up, the secondsealing ring slides along an inner circumferential face of thefluid-communication chamber to prevent the cosmetic fluid contained inthe fluid-communication chamber from flowing out of thefluid-communication chamber, wherein the first and second sealing ringsare spaced apart from each other in a vertical direction, therebypreventing air from flowing into the fluid-communication chamber.

In one implementation of the fourth aspect 41, wherein each of the firstand second fluid communication channels extends in a second direction,wherein the second direction is the longitudinal direction of theelongate main body, wherein a hollow cylindrical tube has an innerdiameter greater than an diameter of the second fluid communicationchannel, and the hollow cylindrical tube protrudes from an outer face ofthe chamber body portion into the fluid storage space defined in themain body, wherein a hollow cover portion is partially fitted into thehollow cylindrical tube and has a first opening defined at a proximalend thereof communicating with the second fluid communication channel,and has a second opening defined at a distal end thereof communicatingwith the fluid storage space, wherein closing/opening means isconfigured to reversibly open and close the second opening defined inthe cover portion, wherein the closing/opening means is disposed in thecover portion and is movable, wherein a closing/opening means stopperhas an annular shape and protrudes inwardly from an inner circumferenceof the cover portion to limit movement of the closing/opening means.

In one implementation of the fourth aspect, wherein the fluidcommunication chamber has an upper portion and a lower portion, whereinthe upper portion thereof has a larger diameter than the lower portion,wherein a spacing is defined between the first elastic member and aninner wall face of the upper portion of the fluid communication chamber.

In one implementation of the fourth aspect, wherein a hollow cylindricalportion further upwards extends from an upper portion of the hollowpiston portion, wherein the hollow cylindrical portion has a lowerportion surrounding the upper portion of the hollow piston portion,wherein the hollow cylindrical portion is disposed in the upper portionof the fluid communication chamber.

In one implementation of the fourth aspect, wherein the cover portionhas an outer portion disposed out of the hollow cylindrical tube,wherein the outer portion defines the second opening defined therein,wherein the outer portion has a hollow truncated conical shape.

In one implementation of the fourth aspect, wherein the hollowcylindrical tube has an annular groove defined in the inner face thereofwhile the cover portion has an annular protrusion defined on an outerface thereof, wherein the annular protrusion is engaged into the annualgroove; alternatively, the hollow cylindrical tube has an annularprotrusion defined on the inner face thereof while the cover portion hasan annular groove defined in an outer face thereof, wherein the annularprotrusion is engaged into the annual groove; and wherein the innerspace of the hollow cylindrical tube is configured to fluid-communicatewith the second fluid communication channel and to fluid-communicatewith the second opening of the cover portion.

In one implementation of the fourth aspect, wherein each of the firstand second fluid communication channels extends in a second direction,wherein the second direction is the longitudinal direction of theelongate main body, wherein a hollow cylindrical tube has an innerdiameter greater than an diameter of the second fluid communicationchannel, and the hollow cylindrical tube protrudes from an outer face ofthe chamber body portion into the fluid storage space defined in themain body, wherein a hollow cover portion is partially fitted into thehollow cylindrical tube and has a first opening defined at a proximalend thereof communicating with the second fluid communication channel,and has a second opening defined at a distal end thereof communicatingwith the fluid storage space, wherein an inner diameter of the coverportion decreases gradually from the first opening thereof to the secondopening thereof, wherein a closing/opening ball is configured toreversibly open and close the second opening defined in the coverportion, wherein the ball is disposed in the cover portion and ismovable, wherein a spring is disposed in the cover portion and isconfigured to push the ball toward the second opening.

In one implementation of the fourth aspect, wherein the hollowcylindrical tube has an annular groove defined in the inner face thereofwhile the cover portion has an annular protrusion defined on an outerface thereof, wherein the annular protrusion is engaged into the annualgroove; alternatively, the hollow cylindrical tube has an annularprotrusion defined on the inner face thereof while the cover portion hasan annular groove defined in an outer face thereof, wherein the annularprotrusion is engaged into the annual groove; and wherein the innerspace of the hollow cylindrical tube is configured to fluid-communicatewith the second fluid communication channel and to fluid-communicatewith the second opening of the cover portion.

In one implementation of the fourth aspect, wherein the dispensercomprises: an inner cap coupled to one longitudinal end of the elongatemain body, the inner cap having a second round concaved top portioncorresponding in position to the first round concaved top and having ashape conformal to the shape of the first round concaved top portion,wherein the second round concaved top portion has an opening definedtherein through which the actuation mechanism passes into the chamber;an outer cap having a receiving space for receiving the distalcosmetic-fluid outlet structure, wherein the outer cap is removablyengaged with the inner cap, wherein the receiving space is defined as acylindrical hollow inner space for partially receiving the inner cap.

In one implementation of the fourth aspect, wherein the first elasticmember is configured such that elastic deformation of the first elasticmember allows up and down movements of the actuation mechanism to bereversible, wherein when an external force is applied to the actuationmechanism, a first volume of cosmetic fluid contained in thefluid-communication chamber flows through the first fluid communicationchannel into the cosmetic-fluid outlet structure, wherein when theexternal force applied to the actuation mechanism is released, cosmeticfluid of an amount equal to the first volume flows from thecosmetic-fluid storage space through the second fluid communicationchannel into the fluid-communication chamber.

In one implementation of the fourth aspect, wherein the cosmetic-fluiddispenser comprises an elongate fluid-supply tube detachably insertedinto the inner space of the elongate main body, wherein the elongatefluid-supply tube has an elongate inner space defined therein, whereinthe inner space of the elongate fluid-supply tube is partitioned into afirst inner sub-space and a second inner sub-space, wherein volumes ofthe first inner sub-space and the second inner sub-space vary reversiblyin a complementary manner to each other, wherein the first innersub-space contains therein the cosmetic fluid to be delivered into thefluid-communication chamber, while the second sub-space contains thereinair flowing from an outside of the dispenser, wherein when externalforce applied to the actuation mechanism is released, a first volume ofcosmetic-fluid stored in the first inner sub-space passes through thesecond fluid-communication channel into the fluid communication chamber,and, at the same time, the volume of the first inner sub-space isreduced by the first volume while the volume of the second innersub-space is expanded by the first volume.

In one implementation of the fourth aspect, wherein the cosmetic-fluiddispenser comprises an elongate fluid-supply tube detachably insertedinto the inner space of the elongate main body, wherein the elongatefluid-supply tube has an elongate inner space defined therein, whereinthe inner space of the elongate fluid-supply tube is partitioned into afirst inner sub-space and a second inner sub-space by a compressingmember, wherein volumes of the first inner sub-space and the secondinner sub-space vary reversibly in a complementary manner to each other,wherein the first inner sub-space contains therein the cosmetic fluid tobe delivered into the fluid-communication chamber, while the secondsub-space contains therein air flowing from an outside of the dispenser,wherein the cosmetic elongate fluid-supply tube has a first longitudinalend facing the chamber body portion, wherein the cosmetic elongatefluid-supply tube has a sealing cap defining a second longitudinal endof the cosmetic elongate fluid-supply tube, wherein the secondlongitudinal end is opposite the first longitudinal end, wherein thesealing cap is tightly inserted into an opening in the secondlongitudinal end, wherein the sealing cap has an air communicationchannel defined therein communicating with the second inner sub-space,wherein the second inner sub-space is defined between the compressingmember and the sealing cap, wherein the volume of the first innersub-space is reduced by a first volume via movement of the compressingmember toward the first longitudinal end together with compressing thefluid in the first sub-space while the volume of the second innersub-space is forcedly expanded by the first volume via theair-communication hole allowing air-communication between the secondinner sub-space and an exterior space of the cosmetic-fluid dispenser.

In one implementation of the fourth aspect, wherein an O-ring isprovided on an outer face of a first longitudinal end of the cosmeticelongate fluid-supply tube, while an annular groove into which theO-ring is seated is defined in an inner face of the elongate main bodysuch that the cosmetic elongate fluid-supply tube and the elongate mainbody are tightly coupled to each other, wherein the first longitudinalend faces the chamber body portion, wherein a second longitudinal end ofthe cosmetic elongate fluid-supply tube is air-tightly blocked by ablocking portion having an air communication channel defined therein.

In one implementation of the fourth aspect8, wherein the cosmetic-fluidoutlet structure includes: a distal portion defining a downstreamportion of the cosmetic-fluid outlet structure, wherein the distalportion has a fluid discharging hole in a tip end thereof fordischarging the cosmetic-fluid, wherein the fluid discharging hole isout of the inner cap; and a proximal portion defining an upstreamportion of the cosmetic-fluid outlet structure, wherein the proximalportion is inserted into an inner elongate space defined in the innercap, wherein the proximal portion has a first inserted portionconnecting the distal portion and a second inserted portion facing thefirst fluid communication channel, wherein a blocking partition isformed between the first and second inserted portions, wherein anelongate spacing is defined between an outer face of the proximalportion and an inner face of the inner elongate space defined in theinner cap, wherein a first fluid-communication space is defined in thefirst inserted portion to be in communication with the fluid discharginghole, wherein the first inserted portion has a first hole definedtherein for fluid communication between the first fluid-communicationspace and the elongate spacing, wherein the second inserted portion hasa second fluid-communication space defined therein in communication withthe first fluid communication channel, wherein the second insertedportion has a second hole defined therein for fluid-communicationbetween the second fluid-communication space and the elongate spacing,wherein hole closing/opening means is disposed in the elongate spacingand is configured to open or close the second hole to control flow ofthe cosmetic fluid through the second hole.

In one implementation of the fourth aspect, wherein when the externalforce is applied to the actuation mechanism, the hole closing/openingmeans is elastically deformed by a pressure resulting from the cosmeticfluid moving from the fluid communication chamber toward a distal end ofthe first fluid communication channel, thereby to open the second hole,wherein when the pressure is deactivated, the hole closing/opening meansis elastically restored via a restoring force thereof, thereby to closethe second hole.

In one implementation of the fourth aspect, wherein the cosmetic-fluidoutlet structure includes: a distal portion defining a downstreamportion of the cosmetic-fluid outlet structure, wherein the distalportion has a fluid discharging hole in a tip end thereof fordischarging the cosmetic-fluid, wherein the fluid discharging hole isout of the inner cap; and a proximal portion defining an upstreamportion of the cosmetic-fluid outlet structure, wherein the proximalportion is hollow and is inserted into an inner elongate slot defined inthe inner cap, wherein the inner elongate slot communicates with thefirst fluid communication channel, and the inner elongate slot has aninner diameter larger than an inner diameter of the first fluidcommunication channel, wherein a fluid-outlet adjustment ball is movablydisposed in the hollow proximal end toward a distal end of the firstfluid communication channel, wherein the fluid-outlet adjustment ballhas a diameter greater than an inner diameter of the first fluidcommunication channel, wherein a second elastic member is disposed inthe hollow proximal end in a downstream region of the fluid-outletadjustment ball.

In one implementation of the fourth aspect, wherein when the externalforce is applied to the actuation mechanism, the cosmetic fluidcontained in the fluid communication chamber moves through the firstfluid communication channel toward the elongate slot to forcedly movethe fluid-outlet adjustment ball toward the fluid discharging hole,thereby to compress the second elastic member, thereby to allow thecosmetic fluid to be discharged through the fluid discharging hole,wherein when the cosmetic fluid depressurizes the fluid-outletadjustment ball, the fluid-outlet adjustment ball moves to close thedistal end of the first fluid communication channel via a restoringforce of the second elastic member.

In accordance with the present disclosure, the cosmetic-fluid dispensermay be capable of smoothly dispensing the constant amount ofcosmetic-fluid, thereby to improve user experience.

Further, in accordance with the present disclosure, the cosmetic-fluiddispenser may always sealed to prevent deterioration and hardening ofthe cosmetic liquid.

Further, according to the present disclosure, it is possible to providethe cosmetic fluid dispenser capable of uniformly discharging a certainamount of cosmetic liquid without being influenced by an external force.

In addition, according to the present disclosure, it is possible toprovide the cosmetic fluid dispenser capable of effectively preventingdeterioration of the cosmetic liquid contained therein by stablyblocking the inflow of air or the like from the outside thereto.

In addition, according to the present disclosure, there is provided thecosmetic fluid dispenser which is easy to carry because leakage ofcosmetic liquid due to an uncontrolled external force thereto may not besuppressed.

In addition, according to the present disclosure, it is possible toprovide the narrow and elongate cosmetic fluid dispenser that is slimand small in size while providing an excellent esthetic feeling becauseno protruding portion in a width direction is formed.

Further, according to the present disclosure, it is possible to providethe cosmetic fluid dispenser wherein the elastic member controlling themovement of the actuation mechanism does not contact the cosmeticliquid, and other unnecessary members are omitted in the flow channel ofthe cosmetic liquid such that characteristics of the cosmetic liquid maybe maintained in a non-polluted state for a long period of time.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 and FIG. 2 are perspective views illustrating a cosmetic-fluiddispenser according to one embodiment of the present disclosure.

FIG. 3 is an exploded perspective view of a cosmetic-fluid dispenseraccording to one embodiment of the present disclosure.

FIG. 4 is a cross-sectional view of a cosmetic-fluid dispenser accordingto one embodiment of the present disclosure.

FIG. 5 and FIG. 6 are schematic views for illustrating a state where anexternal force is applied to an actuation mechanism of a cosmetic-fluiddispenser according to one embodiment of the present disclosure.

FIG. 7 is a schematic view for illustrating a state where an externalforce applied to an actuation mechanism of a cosmetic-fluid dispenseraccording to one embodiment of the present disclosure is released;

FIG. 8 is an exploded perspective view of a cosmetic-fluid dispenseraccording to one embodiment of the present disclosure.

FIG. 9 and FIG. 10 are schematic views for illustrating a cosmetic-fluiddispenser according to one embodiment of the present disclosure.

FIG. 11 and FIG. 12 are perspective views illustrating a cosmetic-fluiddispenser according to one embodiment of the present disclosure.

FIG. 13 is an exploded perspective view of a cosmetic-fluid dispenseraccording to one embodiment of the present disclosure.

FIG. 14 is a cross-sectional view of a cosmetic-fluid dispenseraccording to one embodiment of the present disclosure.

FIG. 15 and FIG. 16 are schematic views for illustrating a state wherean external force is applied to an actuation mechanism of acosmetic-fluid dispenser according to one embodiment of the presentdisclosure.

FIG. 17 is a schematic view for illustrating a state where an externalforce applied to an actuation mechanism of the cosmetic-fluid dispenseraccording to one embodiment of the present disclosure is released;

FIG. 18 is an exploded perspective view of a cosmetic-fluid dispenseraccording to one embodiment of the present disclosure.

FIG. 19 and FIG. 20 are schematic views for illustrating acosmetic-fluid dispenser according to one embodiment of the presentdisclosure.

FIG. 21A is a perspective view of a cosmetic-fluid dispenser accordingto one embodiment of the present disclosure.

FIG. 21B is a perspective view illustrating a state where a cap isseparated from a man body in the cosmetic-fluid dispenser in FIG. 21A.

FIG. 22A is an exploded perspective view of the cosmetic-fluid dispenserof FIG. 21A.

FIG. 22B illustrates a fluid-communication chamber in FIG. 22A.

FIG. 23 is a cross-sectional view of the cosmetic-fluid dispenseraccording to FIG. 21A.

FIG. 24 is a cross-sectional view of the cosmetic-fluid dispenseraccording to FIG. 21B.

FIG. 25 and FIG. 26 are schematic views for illustrating a state wherean external force is applied to an actuation mechanism of acosmetic-fluid dispenser according to one embodiment of the presentdisclosure.

FIG. 27 is a schematic view for illustrating a state where an externalforce applied to an actuation mechanism of the cosmetic-fluid dispenseraccording to one embodiment of the present disclosure is released.

FIG. 28 is an exploded perspective view of a cosmetic-fluid dispenseraccording to one embodiment of the present disclosure;

FIGS. 29 and 30 are schematic views for illustrating a cosmetic-fluiddispenser according to one embodiment of the present disclosure;

FIG. 31 is a cross-sectional view of a cosmetic-fluid dispenseraccording to one embodiment of the present disclosure.

FIGS. 32 and 33 are schematic views for illustrating a state where anexternal force is applied to an actuation mechanism of thecosmetic-fluid dispenser of FIG. 31.

FIG. 34 is a perspective view showing a state of coupling between anelongate main body and a cap according to one embodiment of the presentdisclosure.

FIG. 35 is a perspective view showing a state of separation between theelongate main body and the cap in FIG. 34.

FIG. 36 is a perspective view illustrating of a cosmetic-fluid dispenserin accordance with one embodiment.

FIG. 37 is a perspective view illustrating a state where a cap isseparated from a man body in the cosmetic-fluid dispenser in FIG. 36.

FIG. 38 is a cross-sectional view of the cosmetic-fluid dispenser inFIG. 37.

FIG. 39 is an exploded perspective view of the cosmetic-fluid dispenserFIG. 36.

FIG. 40 is a cross-sectional view of a front portion of the elongatemain body in FIG. 37.

FIG. 41 is a schematic view for illustrating an actuation mechanismbeing subjected to an external force in the FIG. 40.

FIG. 42 is a schematic representation of the external force applied tothe actuation mechanism in FIG. 41.

FIG. 43 is a perspective view of an actuation mechanism and firstelastic member of FIG. 42.

FIG. 44 is a perspective view of an actuation mechanism and firstelastic member according to another embodiment of the presentdisclosure.

FIG. 45 is a view schematically showing the actuation mechanism to whichan external force is applied according to another embodiment of thepresent disclosure.

FIG. 46 is a schematic representation of the external force applied tothe actuation mechanism in FIG. 45.

FIG. 47 is a perspective view of the actuation mechanism and firstelastic member of FIG. 46.

FIG. 48 is a perspective view of the actuation mechanism and firstelastic member according to still another embodiment of the presentdisclosure.

FIG. 49 is a cross-sectional view of the front portion of the elongatemain body according to another embodiment of the present disclosure.

FIG. 50 is a schematic representation of the external force applied tothe actuation mechanism in FIG. 49.

FIG. 51 is a cross-sectional view of the front portion of the elongatemain body according to still further another embodiment of the presentdisclosure.

FIG. 52 is a schematic representation of the external force applied tothe actuation mechanism in FIG. 51.

FIG. 53 is a perspective view of the cosmetic-fluid dispenser accordingto an embodiment of the present disclosure.

FIG. 54 shows a state in which a cap is separated from an elongate mainbody in FIG. 53.

FIG. 55 is a cross-sectional view of FIG. 54.

FIG. 56 is an exploded perspective view of FIG. 53.

FIG. 57 is a section view of the front portion of the elongate main bodyin the FIG. 55.

FIG. 58 is a view schematically showing the actuation mechanism to whichan external force is applied in the FIG. 57

FIG. 59 is a perspective view of the actuation mechanism and the firstelastic member in FIG. 56.

FIG. 60 is a perspective view of the actuation mechanism and firstelastic member according to still further another embodiment of thepresent disclosure.

FIG. 61 is a sectional view of the front portion of the elongate mainbody according to still further another embodiment of the presentdisclosure.

FIG. 62 is a diagram schematically showing an external force applied tothe actuation mechanism in FIG. 61.

FIG. 63 is a cross-sectional view of the front portion of the elongatemain body according to still further another embodiment of the presentdisclosure.

FIG. 64 is a schematic view showing an external force applied to theactuation mechanism in FIG. 63.

FIG. 65 is an enlarged view of a portion for controlling inflow ofliquid in the rear portion of the elongate main body in FIG. 63.

FIG. 66 is an exploded perspective view of FIG. 65.

For simplicity and clarity of illustration, elements in the figures arenot necessarily drawn to scale. The same reference numbers in differentfigures denote the same or similar elements, and as such perform similarfunctionality.

DETAILED DESCRIPTIONS

Examples of various embodiments are illustrated and described furtherbelow. It will be understood that the description herein is not intendedto limit the claims to the specific embodiments described. On thecontrary, it is intended to cover plate alternatives, modifications, andequivalents as may be included within the spirit and scope of thepresent disclosure as defined by the appended claims.

It will be understood that, although the terms “first”, “second”,“third”, and so on may be used herein to describe various elements,components, regions, layers and/or sections, these elements, components,regions, layers and/or sections should not be limited by these terms.These terms are used to distinguish one element, component, region,layer or section from another element, component, region, layer orsection. Thus, a first element, component, region, layer or sectiondescribed below could be termed a second element, component, region,layer or section, without departing from the spirit and scope of thepresent disclosure.

It will be understood that when an element or layer is referred to asbeing “connected to”, or “coupled to” another element or layer, it canbe directly on, connected to, or coupled to the other element or layer,or one or more intervening elements or layers may be present. Inaddition, it will also be understood that when an element or layer isreferred to as being “between” two elements or layers, it can be theonly element or layer between the two elements or layers, or one or moreintervening elements or layers may also be present.

Spatially relative terms, such as “beneath,” “below,” “lower,” “under,”“above,” “upper,” and the like, may be used herein for ease ofexplanation to describe one element or feature's relationship to anotherelement s or feature s as illustrated in the figures. It will beunderstood that the spatially relative terms are intended to encompassdifferent orientations of the device in use or in operation, in additionto the orientation depicted in the figures. For example, if the devicein the figures is turned over, elements described as “below” or“beneath” or “under” other elements or features would then be oriented“above” the other elements or features. Thus, the example terms “below”and “under” can encompass both an orientation of above and below. Thedevice may be otherwise oriented for example, rotated 90 degrees or atother orientations, and the spatially relative descriptors used hereinshould be interpreted accordingly.

The terminology used herein is for the purpose of describing particularembodiments only and is not intended to be limiting of the presentdisclosure. As used herein, the singular forms “a” and “an” are intendedto include the plural forms as well, unless the context clearlyindicates otherwise. It will be further understood that the terms“comprises”, “comprising”, “includes”, and “including” when used in thisspecification, specify the presence of the stated features, integers,operations, elements, and/or components, but do not preclude thepresence or addition of one or more other features, integers,operations, elements, components, and/or portions thereof. As usedherein, the term “and/or” includes any and all combinations of one ormore of the associated listed items. Expression such as “at least oneof” when preceding a list of elements may modify the entire list ofelements and may not modify the individual elements of the list.

Unless otherwise defined, all terms including technical and scientificterms used herein have the same meaning as commonly understood by one ofordinary skill in the art to which this inventive concept belongs. Itwill be further understood that terms, such as those defined in commonlyused dictionaries, should be interpreted as having a meaning that isconsistent with their meaning in the context of the relevant art andwill not be interpreted in an idealized or overly formal sense unlessexpressly so defined herein.

In the following description, numerous specific details are set forth inorder to provide a thorough understanding of the present disclosure. Thepresent disclosure may be practiced without some or all of thesespecific details. In other instances, well-known process structuresand/or processes have not been described in detail in order not tounnecessarily obscure the present disclosure.

FIG. 1 and FIG. 2 are perspective views illustrating a cosmetic-fluiddispenser according to one embodiment of the present disclosure.

Referring to FIG. 1 and FIG. 2, the cosmetic-fluid dispenser accordingto one embodiment of the present disclosure includes an actuationmechanism 140 configured to allow selective dispensing of acosmetic-fluid; a elongate main body 110 having opposite first andsecond end portions, and a first opening 113 defined in a side portionthereof, wherein the elongate main body contains therein acosmetic-fluid, wherein the actuation mechanism 140 passes through thefirst opening 113; a fluid-communication chamber 130 disposed in thefirst end portion of the elongate main body 110, wherein thefluid-communication chamber 130 fluid-communicates with the elongatemain body 110, wherein the fluid-communication chamber 130 is configuredto cooperate with the actuation mechanism 140 to dispense acosmetic-fluid out of the elongate main body; a distal cosmetic-fluidoutlet structure 171 fluid-communicating with the fluid-communicationchamber 130, wherein the distal cosmetic-fluid outlet structure 171 isdisposed out of the main body 110; and a cap 180 removably coupled tothe elongate main body 110 at the first end portion 115.

In this connection, the cosmetic-fluid stored in a storage space of theelongate main body 110 has a sufficient viscosity to be dischargedthrough the distal cosmetic-fluid outlet structure 171. Thecosmetic-fluid is not particularly limited.

When the cap 180 is separated from the elongate main body 110, thedistal cosmetic-fluid outlet structure 171 is exposed. Conversely, whenthe cap 180 is combined with the elongate main body 110, the distalcosmetic-fluid outlet structure 171 is concealed within the cap 180.After the cap 180 is separated from the elongate main body 110, when anexternal force is applied to the actuation mechanism 140, a certainamount of the cosmetic fluid flows out of the main body 110 through thedistal cosmetic-fluid outlet structure 171.

FIG. 3 is an exploded perspective view of a cosmetic-fluid dispenseraccording to an embodiment of the present disclosure. FIG. 4 is across-sectional view of a cosmetic-fluid dispenser according to oneembodiment of the present disclosure.

Referring to FIG. 3 and FIG. 4, the elongate main body 110 is hollow andhaving a fluid receiving space formed therein, in which thecosmetic-fluid may be stored. The elongate main body 110 may be made ofa transparent material or a translucent material so that thecosmetic-fluid contained therein may be visible to the outside. Suchmaterials may include glass or synthetic resin materials. In the sideportion of the elongate main body 110, the first opening 113 is defined,through which the actuation mechanism 140 passes.

The fluid-communication chamber 130 is disposed within the elongate mainbody 110. The fluid-communication chamber 130 includes a chamber body132 having a cylindrical space defined therein, and a cosmetic-fluidoutlet guide 131 in fluid-communication with the chamber body 132. Thecosmetic-fluid outlet guide 131 is in fluid-communication with thedistal cosmetic-fluid outlet structure 171. The chamber body 132 has afluid-inlet hole 132 a formed in a bottom thereof, a fluid-outlet hole132 b fluid-communicating with the cosmetic-fluid outlet guide 131, anda second opening 132 c position-corresponding to the first opening 113.The cosmetic fluid stored in the main body 110 flows into thecylindrical space in the chamber body 132 through the fluid-inlet hole132 a.

The actuation mechanism 140 includes a pushed portion 141 a protrudingout of the elongate main body 110 to receive an external force, aninsertable cylinder 141 b connected to the pushed portion 141 a andpassing through the first and second openings 113 and 132 c, and a firstelastic member 143 disposed on a bottom of the insertable cylinder 141 band within the cylindrical space in the chamber body 132. The firstelastic member 143 is elastically deformed via the insertable cylinder141 b when an external force is applied to the pushed portion 141 a.Then, the first elastic member 143 is restored by an elastic restoringforce when the external force is released, thereby to allow theinsertable cylinder 141 b to return to its home position.

The top of the first elastic member 143 is in contact with the bottom ofthe insertable cylinder 141 b, and the bottom of the first elasticmember 143 is in contact with a hole-opening/closing member 148. Whenthe pushed portion 141 a is moved in a first direction (for example,downwards) by an external force, the first elastic member 143 in contactwith the pushed portion 141 a and the insertable cylinder 141 b iselastically compression-deformed. When the applied external force isreleased, the first elastic member 143 is elastically expansion-deformedin a second direction by the elastic restoring force. As a result, thepushed portion 141 a is moved in the second direction (for example,upwards) opposite to the first direction.

The actuation mechanism 140 also includes the hole-opening/closingmember 148 disposed on the bottom of the first elastic member 143 andwithin the cylindrical space in the chamber body 132. Thehole-opening/closing member 148 is configured to open or close thefluid-inlet hole 132 a based on the presence or absence of the externalforce applied to the pushed portion 141 a.

The hole-opening/closing member 148 is formed in a shape correspondingto the shape of the fluid-inlet hole 132 a. In this connection, thehole-opening/closing member 148 may be made of a material having a lessdensity that that of the fluid.

In one example, when the cross-section of the fluid-inlet hole 132 a iscircular, the hole-opening/closing member 148 has a spherical shape asshown in FIG. 3. As such, the hole-opening/closing member 148 realizesselective closing of the fluid-inlet hole 132 a.

The hole-opening/closing member 148 is urged downwards by the firstelastic member 143 being elastically compression-deformed by theexternal force to close the fluid-inlet hole 132 a. Then, when theexternal force is released, the pressing force of the first elasticmember 143 thereto decreases, the hole-opening/closing member 148 risesup to at least partially open the fluid-inlet hole 132 a.

In this connection, partially opening the fluid-inlet hole 132 a meansthat a fine clearance is defined such that the cosmetic-fluid containedin the storage space of the elongate main body 110 can flow through thefluid-inlet hole 132 a.

Specifically, the hole-opening/closing member 148 completely contactsthe fluid-inlet hole 132 a by the first elastic member 143 to close thefluid-inlet hole 132 a. Alternatively, when no external force is appliedto the first elastic member 143, the first elastic member 143 lesspushes the hole-opening/closing member 148 toward the fluid-inlet hole132 a, thereby to allow flow of the cosmetic-fluid between thehole-opening/closing member 148 and the fluid-inlet hole 132 a.

The fluid-inlet hole 132 a may be formed in a shape conforming to acontour of an outer surface of the hole-opening/closing member 148 suchthat at least a portion of the hole-opening/closing member 148 isinserted into the fluid-inlet hole 132 a. The fluid inlet hole 132 aserves as a passage to enable fluid-communication between the fluidstorage space of the elongate main body 110 and the fluid accommodationspace of the chamber body 132. In this regard, an interface between thefluid-inlet hole 132 a and the fluid receiving space of the chamber body132 of may be rounded so that at least a portion of thehole-opening/closing member 148 is inserted therein.

The upper end of the first elastic member 143 is in contact with thelower end of the insertable cylinder 141 b, and the lower end of thefirst elastic member 143 is in contact with the hole-opening/closingmember 148. In this connection, the first elastic member 143 may beconfigured to gradually decrease in its cross-sectional size from thetop to the bottom thereof.

Specifically, the upper end of the first elastic member 143, which is incontact with the insertable cylinder 141 b, has a cross-section sizecorresponding to that of the lower end of the insertable cylinder 141 bto receive effectively the external force from the insertable cylinder141 b. On the other hand, the lower end of the first elastic member 143contacting the hole-opening/closing member 148 is formed to have asmaller cross-sectional size than the maximum diameter of thehole-opening/closing member 148 such that the lower end of the firstelastic member 143 is reliably in contact with the outer surface of thehole-opening/closing member 148.

Further, since the lower end of the first elastic member 143, which isin contact with the outer surface of the hole-opening/closing member148, has a smaller cross-sectional area than that of the upper endthereof, the applied external force is gradually concentrated toward thelower end thereof. Thus, this makes it possible to more efficientlyimplement the closing of the fluid-inlet hole 132 a by thehole-opening/closing member 148.

The actuation mechanism 140 includes a proximal sealing ring 145 coupledto the insertable cylinder 141 b. The proximal sealing ring 145 servesto prevent the escape of cosmetic fluid out of the cylindrical space ofthe chamber body when the insertable cylinder 141 b moves from the firstdirection to the second direction or from the second direction to thefirst direction.

The proximal sealing ring 145 prevents air flow in and out of thecylindrical space of the chamber body through the first opening 113. Thecylindrical space in the chamber body 132 is kept airtight by theproximal sealing ring 145 to prevent the cosmetic fluid in thecylindrical space in the chamber body from flowing out of the spacethrough the first opening 113. This prevents cosmetic-fluid leakagethrough the first opening 113 in the process of repeatedly applying anexternal force to the actuation mechanism 140 in order that the useruses the cosmetic-fluid. Thus, the cosmetic-fluid is not deposited on apart of the user's body. Further, this prevents the cosmetic-fluid fromgetting on the outer surface of the cosmetic-fluid dispenser.

When moving the actuation mechanism 140 from the first direction to thesecond direction or from the second direction to the first direction,the proximal sealing ring 145 moves along the cylindrical inner sidewall of the chamber body 132 while being coupled to the insertablecylinder 141 b. This prevents leakage of the cosmetic-fluid receivedwithin the cylindrical space through the first opening 113.

Specifically, the proximal sealing ring 145 is engaged with the proximalend 141 f of the inserted portion of the insertable cylinder 141 b. Theproximal sealing ring 145 projects further outward than the outerdiameter of the portion 141 d between the proximal end and the distalend of the inserted portion of the insertable cylinder 141 b. Thereby,the proximal sealing ring 145 is compressed by the cylindrical innerwall of the chamber body 132 to have a size corresponding to thediameter of the cylindrical space of the chamber body 132.

In this connection, the insertable cylinder 141 b has a portion 141 dbetween the proximal end and the distal end of the inserted portion ofthe insertable cylinder, the portion 141 d having a diametersubstantially equal to the diameter of the cylindrical space of thechamber body 132. The proximal end 141 f of the inserted portion of theinsertable cylinder 141 b and the distal end 141 e of the insertedportion of the insertable cylinder 141 b both have a smaller diameterthan the portion 141 d between the proximal end and the distal end ofthe inserted portion of the insertable cylinder.

The actuation mechanism 140 further includes a distal sealing ring 147coupled to the insertable cylinder 141 b. The distal sealing ring 147slides along the cylindrical inner wall of the chamber body 132 when theinsertable cylinder 141 b moves from the first direction to the seconddirection or from the second direction to the first direction.

The distal sealing ring 147 is joined to the distal end 141 e of theinserted portion of the insertable cylinder. The distal sealing ring 147further projects outwardly beyond the diameter of the portion 141 dbetween the proximal and distal ends of the inserted portion of theinsertable cylinder 141 b. The distal sealing ring 147 is compressed bythe inner wall of the chamber body 132 to have a diameter substantiallythe same as the diameter of the cylindrical space of the chamber body132.

In this connection, the distal sealing ring 147 may be made of amaterial having an elastic force that can be deformed by an externalforce.

When an external force is applied to the pushed portion 141 a of theactuation mechanism 140, the insertable cylinder 141 b is displaced fromthe first position to the second position in the first direction. Thedisplacement of the insertable cylinder 141 b from the first position tothe second position means movement of the cylinder 141 b into thecylindrical space of the chamber body 132. At this time, the insertablecylinder 141 b slides along the inner cylindrical wall in contact withthe inner cylindrical wall of the chamber body 132.

The proximal sealing ring 145 coupled to the proximal end 141 f of theinserted portion of the insertable cylinder, and the distal sealing ring147 coupled to the distal end 141 e of the inserted portion of theinsertable cylinder moves along and on the inner cylindrical wall of thechamber body while contacting the inner cylindrical wall. The proximalsealing ring 145 and the distal sealing ring 147 are thereby compressedby the inner cylindrical wall of the chamber body 132. Thus, theproximal sealing ring 145 and the distal sealing ring 147 are slidingalong the inner cylindrical wall of the chamber body 132 while pressingagainst the inner cylindrical wall of the chamber body 132.

At this time, a portion of the cylindrical space of the chamber body132, which is located below the distal sealing ring 147, is sealed bythe distal sealing ring 147. As a result, a pressure to discharge thecosmetic-fluid from the cylindrical space of the chamber body to thecosmetic-fluid outlet guide 131 rises. Thereby, the cosmetic-fluid flowinto the cosmetic-fluid outlet guide 131 is effectively realized.

More specifically, the distal sealing ring 147 prevents the loss ofcosmetic-fluid, which may otherwise occur when the fluid leaks throughthe fine gap between the outer face of the insertable cylinder 141 b andthe inner cylindrical wall of the chamber body 132. Thereby, thecosmetic-fluid outflow from within the cylindrical space of the chamberbody to the cosmetic-fluid outlet guide 131 is effectively realized.This outflow is realized with a stronger pressure, compared to the casewhere the distal sealing ring 147 is absent.

In addition, the user must apply an external force to the pushed portion141 a sufficient to overcome the frictional force between the distalsealing ring 147 and the inner cylindrical wall of the chamber body 132.Therefore, as compared with the case where the distal sealing ring 147is not provided, a stronger external force must be applied to the pushedportion 141 a.

The actuation mechanism 140 may further include a step portion 141 cformed between the pushed portion 141 a and the insertable cylinder 141b and protruding outwardly out of the main body 110.

After the actuation mechanism 140 is inserted into the first opening113, an outer housing 160 having a third opening 161 formed therein to adiameter corresponding to an outer diameter of the step portion 141 csurrounds a portion of the elongate main body 110 having the firstopening 113 defined therein. In this regard, the outer housing 160 maybe coupled to the elongate main body 110 such that the first opening 113and the third opening 161 communicate with each other. When the externalforce applied to the actuation mechanism 140 is released, the insertablecylinder 141 b is supported by the outer housing 160, so that theactuation mechanism 140 may be prevented from escape out of the mainbody 110.

In an upper end of the step portion 141 c, a protrusion-receiving hole his formed in which a protrusion r from the pushed portion 141 a isinserted. When the protrusion r from the pushed portion 141 a isreceived in the protrusion-receiving hole h, the pushed portion 141 aand the insertable cylinder 141 b are engaged with each other.

In this connection, a size of a cross-sectional area of the pushedportion 141 a is larger than a size of a cross-sectional area of thestep portion 141 c. As a result, a contact area of the pushed portion141 a with a part of the user's body is increased, so that the user canmore easily apply the external force to the pushed portion 141 a.

The fluid-communication chamber 130 is inserted into the elongate mainbody 110. The fluid-communication chamber 130 is located below theactuation mechanism 140 such that the pressurization of thecosmetic-fluid contained in the chamber 130 by the actuation mechanism140 is facilitated. The cosmetic-fluid of the amount (volume)corresponding to the external force applied to the actuation mechanism140 is discharged out of the main body 110 through the distalcosmetic-fluid outlet structure 171.

The cylindrical space within the chamber body of the fluid-communicationchamber 130 is reduced by a first volume by the actuation mechanism 140being displaced in the first direction by the applied external force,and thus the fluid amount corresponding to the first volume flows outthrough the cosmetic-fluid outlet guide 131 to the distal cosmetic-fluidoutlet structure 171. To the contrary, when the applied external forceis released, the actuation mechanism 140 is displaced in the seconddirection opposite to the first direction, such that the cylindricalspace in the chamber body of the fluid-communication chamber 130 isexpanded by the first volume. At this time, the cosmetic fluid stored inthe elongate main body 110 flows into the cylindrical space in thechamber body to compensate for the expanded first volume. This operationprinciple will be described in detail with reference to FIG. 5 to FIG.7.

A sealing cap 150 is inserted within the second end of the elongate mainbody 110 to seal the second end.

The distal cosmetic-fluid outlet structure 171 has an outlet hole 171 aformed in its downstream region for discharging the cosmetic-fluid, andan inserted portion 171 c formed in the upstream region thereof andinserted into a distal end of the cosmetic-fluid outlet guide 131.

The outlet hole 171 a may be formed in an elliptical shape so that theoutlet hole 171 a may be closely adhered to the skin of the user.According to an embodiment of the present disclosure, a cosmetic brush(not shown) may be coupled to the outlet hole portion. As a result, thecosmetic fluid drained through the outlet hole may be absorbed into theuser's skin via the soft brush. In this way, the user may use thecosmetic-fluid for skin beauty while feeling the touch of the softbrush.

An inner diameter of the distal end portion of the cosmetic-fluid outletguide 131 is larger than an inner diameter of a middle extension portionof the cosmetic-fluid outlet guide 131. The inserted portion 171 c ofthe distal cosmetic-fluid outlet structure 171 is inserted into thedistal end of the cosmetic-fluid outlet guide 131.

According to one embodiment of the present disclosure, a second elasticmember 173 is disposed between an outer peripheral surface of theinserted portion 171 c of the distal cosmetic-fluid outlet structure 171and an inner peripheral surface of the distal end portion of thecosmetic-fluid outlet guide 131. At a rear end of the second elasticmember 173, an outlet-control ball 175 having a larger diameter thanthat of a middle extension portion of the cosmetic-fluid outlet guide131 may be disposed.

In this connection, when an external force is applied to the actuationmechanism 140, the outlet-control ball 175 is subjected to a pressuregenerated by the cosmetic-fluid moving in the distal end direction ofthe cosmetic-fluid outlet guide 131 through the fluid-outlet hole 132 b,and, thus, is moved in a third direction. When the pressure generated bythe cosmetic-fluid is weakened, the outlet-control ball 175 is moved bythe second elastic member 173 in a fourth direction opposite to thethird direction. Thereby, the outlet-control ball 175 closes an inlethole 131 b formed in a boundary region between the distal end and themiddle extension portion of the cosmetic-fluid outlet guide 131.

For reference, the first direction or the second direction is adirection perpendicular to the third direction or the fourth direction.

The cosmetic-fluid dispenser further includes a compressing member 190disposed within the inner space of the elongate main body 110. Thecompressing member 190 divides the inner space of the main body 110 intoa first inner sub-space S1 and a second inner sub-space S2. The firstinner sub-space is formed between the compressing member 190 and thefluid-communication chamber 130, and the cosmetic-fluid is stored in thefirst inner sub-space. When the external force applied to the actuationmechanism 140 is released, a first volume of cosmetic-fluid from thecosmetic-fluid stored in the first inner sub-space S1 passes through thefluid-inlet hole 132 a into the cylindrical space of the chamber body132. At the same time, the compressing member 190 is displaced along theinner face of the elongate main body 110 such that the volume of thefirst inner sub-space is reduced by the first volume.

The second inner sub-space is formed between the compressing member 190and the sealing cap 150. When the volume of the first inner sub-space isreduced by the first volume, the volume of the second inner sub-space isexpanded by the first volume.

A detailed description of the compressing member 190 will be given whenan operation mechanism of the cosmetic-fluid dispenser based on theabsence or presence of the external force thereto will be described withreference to FIG. 5 to FIG. 7.

FIG. 5 and FIG. 6 are schematic views illustrating a state where anexternal force is applied to the actuation mechanism of thecosmetic-fluid dispenser according to an embodiment of the presentdisclosure. FIG. 7 is a schematic view illustrating a state in which theexternal force applied to the actuation mechanism of the cosmetic-fluiddispenser according to an embodiment of the present disclosure isreleased.

Referring to FIG. 5 and FIG. 6, after the cap 180 is removed, when auser who wishes to use the cosmetic-fluid dispenser applies an externalforce in a first direction onto the pushed portion 141 a using a part (afinger) of his or her body, the insertable cylinder 141 b is displacedfrom the first position to the second position along the firstdirection. In this connection, since the movement of the insertablecylinder 141 b from the first position to the second position refers tothe movement of the cylinder 141 b into the cylindrical space in thechamber body 132, the volume of the cylindrical space of the chamberbody 132 is reduced by the inserted portion of the insertable cylinder141 b.

In this connection, the volume of the cylindrical space of the chamberbody is reduced by the first volume. In other words, a portion of theinsertable cylinder 141 b corresponding to the first volume is insertedinto the cylindrical space in the chamber body. As the pushed portion141 a moves from the first position to the second position, the firstelastic member 143 elastically deforms in a compressed manner.

In response to the displacement of the insertable cylinder 141 b intothe cylindrical space of the chamber body, the cosmetic-fluid containedwithin the cylindrical space of the chamber body is transferred to thedistal cosmetic-fluid outlet structure 171 through the cosmetic-fluidoutlet guide 131.

In this connection, a cosmetic-fluid outflow path from the cylindricalspace of the chamber body may include an outflow path through thecosmetic-fluid outlet guide 131 and an outflow path through thefluid-inlet hole 132 a. However, during movement of the insertablecylinder 141 b from the first position to the second position, thefluid-inlet hole 132 a is closed by the hole-opening/closing member 148.The outflow path through the fluid-inlet hole 132 a may be deactivated.Thus, the cosmetic fluid in the cylindrical space of the chamber bodymay outflow only via the outflow path through the cosmetic-fluid outletguide 131. Accordingly, the user may use the cosmetic-fluid dischargedthrough the distal cosmetic-fluid outlet structure 171.

Closing of the fluid-inlet hole 132 a by the hole-opening/closing member148 is as described above.

As for the operation of the insertable cylinder 141 b, when an externalforce is applied to the pushed portion 141 a, the insertable cylinder141 b is displaced from the first position to the second position, whilewhen the external force applied to the pushed portion 141 a is released,the insertable cylinder 141 b is displaced via the first elastic member143 from the second position to the first position. When the insertablecylinder 141 b is at the second position, the fluid-inlet hole 132 a isclosed, thereby restricting the movement of the cosmetic-fluid throughthe fluid-inlet hole 132 a. When the insertable cylinder 141 b is at thefirst position, the fluid-inlet hole 132 a is opened, whereby themovement of the cosmetic-fluid through the fluid-inlet hole 132 a isactivated.

Due to the pressure created by the cosmetic-fluid moving from thecylindrical space of the chamber body 132 through the fluid-outlet hole132 b, the outlet-control ball 175 is moved in a direction far away fromthe elongate main body 110, that is, in the third direction.Accordingly, the cosmetic-fluid received in the intermediate extensionportion of the cosmetic-fluid outlet guide 131 which has been blocked bythe outlet-control ball 175 now passes through a gap between theoutlet-control ball 175 and the inlet hole 131 b into the distalcosmetic-fluid outlet structure 171. The cosmetic-fluid introduced intothe distal cosmetic-fluid outlet structure 171 outflows through theoutlet hole 171 a.

As the cosmetic fluid contained in the intermediate extension portion ofthe cosmetic-fluid outlet guide 131 gradually passes through the gapbetween the outlet-control ball 175 and the inlet hole 131 b, thepressure exerted on the distal cosmetic-fluid outlet structure 171 isweakened. In this connection, due to the elastic force of the secondelastic member 173, the outlet-control ball 175 is moved in the fourthdirection opposite to the third direction, thereby to close the inlethole 131 b. Consequently, the cosmetic-fluid contained within thefluid-communication chamber 123 is consumed by the amount thereof equalto the amount of the cosmetic-fluid introduced into the distalcosmetic-fluid outlet structure 171.

Referring to FIG. 7, when the external force applied to the pushedportion 141 a is released, the first elastic member 143 elasticallydeformed in a compressed manner is elastically deformed in such a mannerthat it is expanded by its restoring force. Accordingly, thedisplacement of the pushed portion 141 a from the second position to thefirst position is realized.

In this connection, the insertable cylinder 141 b inserted in thecylindrical space of the chamber body 132 is displaced in the seconddirection from within the cylindrical space of the chamber body. As theinsertable cylinder 141 b is displaced in the second direction, an emptyspace of the first volume is created in the cylindrical space of thechamber body. In this regard, since the fluid-inlet hole 132 a is openedduring displacement of the insertable cylinder 141 b in the seconddirection, the void volume of the first volume is filled with thecosmetic-fluid moved from the first inner sub-space S1 through thefluid-inlet hole 132 a.

Specifically, the first opening 113 is kept airtight by the proximalsealing ring 145, thereby preventing air from flowing through the firstopening 113. Accordingly, since there is no inflow of air into thecylindrical space of the chamber body 132, the empty space of the firstvolume is in a vacuum state. In this connection, the cosmetic-fluidstored in the first inner sub-space S1 of the elongate main body 110 issucked through the fluid-inlet hole 132 a into the empty portion of thecylindrical space of the chamber body at this vacuum state. Using thissucking phenomenon, a constant amount of cosmetic-fluid may be kept inthe cylindrical space of the chamber body.

In this connection, since the cosmetic-fluid outlet guide 131 which mayact as a cosmetic-fluid movement path on the other side of the chamberbody 132 into the cylindrical space of the body 132, is blocked by theoutlet-control ball 175, the cosmetic-fluid inflow may be realized onlythrough the fluid-inlet hole 132 a.

In order for the cosmetic fluid to move from the first inner sub-spaceS1 of the elongate main body 110 into the cylindrical space of thechamber body through the fluid-inlet hole 132 a, only the cosmetic-fluidshould be present in the first inner sub-space S1. Therefore, since thefluid of the first volume has been emitted from the first innersub-space S1, the volume of the first inner sub-space S1 must bevariable to remove air creation therein.

To this end, the cosmetic-fluid dispenser according to the presentdisclosure comprises the compressing member 190. The compressing member190 may define the first inner sub-space S1 and prevent the inflow ofair into the space S1.

The compressing member 190 may be displaced in a sliding manner alongand on the inner face of the elongate main body 110. This displacementis based on the volume change of the space S1 due to the outflow of thecosmetic fluid from the first inner sub-space S1.

Specifically, since there is only the cosmetic-fluid in the first innersub-space S1, the empty space in the space S1, which occurs in responseto the outflow of the cosmetic-fluid, must be filled with air or anexternal substance. In this regard, the compressing member 190 preventsinflow of the external air or material into the first inner sub-spaceS1, so that the inner volume of the first inner sub-space S1 is reducedto remove the empty space, thereby to enable the cosmetic-fluid outflowtherefrom.

The compressing member 190 divides the inner space of the elongate mainbody 110 into the first inner sub-space S1 and the second innersub-space S2. When the external force applied to the actuation mechanism140 is released so that the first volume of cosmetic-fluid from thecosmetic-fluid stored in the first inner sub-space S1 passes through thefluid-inlet hole 132 a into the cylindrical space of the chamber body,the compressing member 190 is slidably moved along and one the innerface of the elongate main body 110 such that the volume of the firstinner sub-space S1 is reduced by the first volume.

At the same time, the second inner sub-space S2 divided by thecompressing member 190 is correspondingly expanded as the volume of thefirst inner sub-space S1 is reduced.

In this connection, the sealing cap 150 has an air-communication hole152 defined therein, which allows air-communication between the secondinner sub-space S2 and an exterior space of the cosmetic-fluid dispenser1. The air-communication hole 152 serves as a channel through which,when the second inner sub-space S2 is expanded by the first volume, theoutside air of the same volume as the first volume flows into the secondinner sub-space S2.

On the other hand, the cosmetic-fluid of an amount corresponding to thefirst volume from the cosmetic-fluid stored in the elongate main body110 is transferred into the cylindrical space of the chamber body. Thus,the cosmetic fluid contained within the cylindrical space of the chamberbody 132 is in a standby state ready to receive the external force fromthe user again.

After using the cosmetic-fluid exiting through the distal cosmetic-fluidoutlet structure 171, when the user determines that the cosmetic-fluidis further needed, the user may re-apply an external force onto thepushed portion 141 a of the actuation mechanism 140, which has movedfrom the second position to the first position. In this way, theabove-described series of processes may be repeated.

According to the embodiment described above, the chamber body 132 isdescribed as being removably inserted into the elongate main body 110.However, the present disclosure is not limited thereto. In oneembodiment, the chamber body 132 may be integral with the elongate mainbody 110.

FIG. 8 is an exploded perspective view of a cosmetic-fluid dispenseraccording to one embodiment of the present disclosure.

Referring to FIG. 8, the cosmetic-fluid dispenser according to thisembodiment of the present disclosure has the same configuration andeffect as those of the cosmetic-fluid dispenser as shown in FIG. 1 toFIG. 7 except for a removable cosmetic-fluid storage unit 290. Thus,hereinafter, only the removable cosmetic-fluid storage unit 290 will bedescribed.

The removable cosmetic-fluid storage unit 290 may accommodate therein acompressing member 293 with the same configuration as that as describedabove, and may be removably inserted into the elongate main body 110.

Specifically, the removable cosmetic-fluid storage unit 290 includes aremovable elongate body 291 having an inner space therein, and removablyinserted into the inner space of the elongate main body 110; thecompressing member 293 dividing the inner space of the removableelongate body 291 into the third inner sub-space S3 and the fourth innersub-space S4; and a sealing cap 295 to seal the inner space of theremovable elongate body 291 and the second end of the elongate main body110. The cosmetic-fluid is stored in the third inner sub-space S3 formedbetween the compressing member 293 and the fluid-communication chamber130. When the external force applied to the actuation mechanism 140 isreleased so that the cosmetic-fluid of the same volume as thefirst-volume from the cosmetic-fluid stored in the third inner sub-spaceS3 passes through the fluid-inlet hole 132 a into the cylindrical spaceof the chamber body 132, the compressing member 293 is displaced in asliding manner along and on the inner face of the removable elongatebody 291 so that the volume of the third inner sub-space S3 is reducedby the first volume.

In this connection, the removable cosmetic-fluid storage unit 290 may beseparately manufactured and then removably inserted into the elongatemain body 110. Thus, when the removable cosmetic-fluid storage unit 290is separated from the elongate main body 110, the cosmetic-fluid may berefilled into the removable cosmetic-fluid storage unit 290 which inturn may be inserted into the elongate main body 110. This allows thecosmetic-fluid dispenser to be refilled with the cosmetic-fluid.

To this end, the removable cosmetic-fluid storage unit 290 may bereleasably coupled to the elongate main body 110 by threaded-typeengagement. In this connection, the sealing cap 295 has a coin-insertionhole 297 defined therein, into which a portion of a common coin may beinserted. Thereby, when the coin is inserted into the coin-insertionhole 297 and then the user rotates the coin, the threaded-typeengagement may be activated or deactivated.

An outer sealing ring 291 a is disposed on the outer surface of theremovable elongate body 291 to improve the bonding force with the innersurface of the elongate main body 110 when the removable elongate body291 is inserted into the inner space of the elongate main body 110. Theouter sealing ring 291 a is made of a rubber material having elasticity.When the removable cosmetic-fluid storage unit 290 is inserted into theelongate main body 110, the outer sealing ring 291 a is deformed incontact with the inner surface of the elongate main body 110, therebymaintaining the airtightness between the removable elongate body 291 andthe elongate main body 110 and improving the bonding force therebetween.

In this connection, the sealing cap 295 has an air-communication hole(not shown) defined therein, which allows air-communication between thesecond inner sub-space S4 and an exterior space of the cosmetic-fluiddispenser. The air-communication hole serves as a channel through which,when the second inner sub-space S4 is expanded by the first volume, theoutside air of the same volume as the first volume flows into the secondinner sub-space S4.

FIG. 9 and FIG. 10 are schematic views for illustrating a cosmetic-fluiddispenser according to one embodiment of the present disclosure.

Referring to FIG. 9 and FIG. 10, the cosmetic-fluid dispenser accordingto this embodiment of the present disclosure has the same configurationand effect as those of the cosmetic-fluid dispenser as shown in FIG. 1to FIG. 7, except for a removable cosmetic-fluid storage unit 390. Thus,hereinafter, only the removable cosmetic-fluid storage unit 390 will bedescribed.

In FIG. 9 and FIG. 10, a removable elongate body 391 and a sealing cap395 are separately shown for the sake of convenience of illustration.However, actually, the removable elongate body 391 and the sealing cap395 are integrally formed.

The removable cosmetic-fluid storage unit 390 is inserted into the innerspace of the elongate main body 110. The removable cosmetic-fluidstorage unit 390 may be coupled to the elongate main body 110 in apress-fit manner rather than in a threaded type engagement manner.

To this end, the removable cosmetic-fluid storage unit 390 has at leastone outer protrusion ring 398 which protrudes from and extends along anouter circumferential surface thereof. The elongate main body 110 has atleast one inner groove ring, each having a position and shapecorresponding to those of each outer protrusion ring 398.

The coupling between the removable cosmetic-fluid storage unit 390 andthe elongate main body 110 may be realized by engagement between theouter protrusion ring 398 and the inner groove ring (not shown).

The sealing cap 395 includes a removing-force receiving portion 396protruding from an outer end face of the cap 395 and having apassing-through hole 396 a defined therein. The user removes theremovable cosmetic-fluid storage unit 395 from the elongate main body110 by inserting a ring-shaped remover (not shown) into thepassing-through hole 396 a and pulling away the remover.

Specifically, the ring-shaped remover has a dimension corresponding to adimension of the passing-through hole 396 a. The ring-shaped remover maybe used to separate the removable cosmetic-fluid storage unit 390 fromthe elongate main body 110.

To remove the removable cosmetic-fluid storage unit 390 from theelongate main body 110, the user inserts the ring-shaped remover intothe passing-through hole 396 a and then pull the ring-shaped remover ina direction such that the removable cosmetic-fluid storage unit 390moves away from the main body 110. This removes the combination of theremovable elongate body 391 and the sealing cap 395 from the elongatemain body 110.

The sealing cap 395 may have an air-communication hole 395 a definedtherein for performing the same function as the air-communication hole152 described above.

FIG. 11 and FIG. 12 are perspective views illustrating a cosmetic-fluiddispenser according to one embodiment of the present disclosure.

Referring to FIG. 11 and FIG. 12, the cosmetic-fluid dispenser accordingto this embodiment of the present disclosure includes an elongate mainbody 1110 having a main inner space storing a cosmetic-fluid therein,and a first opening 1113 defined therein, through which the actuationmechanism 1140 passes; a fluid-communication chamber 1130 disposed inthe inner space of the elongate main body 1110, wherein a distalcosmetic-fluid outlet structure 1171 is fluid-communicated with thefluid-communication chamber 1130, through which the cosmetic-fluidoutflows; and a cap 1180 coupled to a first end 1115 of the elongatemain body 1110.

In this connection, the cosmetic-fluid stored in the inner space of theelongate main body 1110 may be of various types of cosmetic-fluidshaving a viscosity sufficient to flow through the distal cosmetic-fluidoutlet structure 1171.

In this embodiment, when the cap 1180 is separated from the elongatemain body 1110, the distal cosmetic-fluid outlet structure 1171 isexposed. When the cap 1180 is coupled with the elongate main body 1110,the distal cosmetic-fluid outlet structure 1171 is hidden within the cap1180. After the cap 1180 is separated from the elongate main body 1110,when an external force is applied to the actuation mechanism 1140, acertain amount of cosmetic-fluid flows out through the distalcosmetic-fluid outlet structure 1171.

FIG. 13 is an exploded perspective view of a cosmetic-fluid dispenseraccording to one embodiment of the present disclosure. FIG. 14 is across-sectional view of a cosmetic-fluid dispenser according to oneembodiment of the present disclosure.

Referring to FIG. 13 and FIG. 14, the cosmetic-fluid dispenser accordingto this embodiment of the present disclosure includes an actuationmechanism 1140 configured to allow selective dispensing of acosmetic-fluid; a elongate main body 1110 having opposite first andsecond end portions, and a first opening 1113 defined in a side portionthereof, wherein the elongate main body contains therein acosmetic-fluid, wherein the actuation mechanism 1140 passes through thefirst opening 1113; a fluid-communication chamber 1130 disposed in thefirst end portion of the elongate main body 1110, wherein thefluid-communication chamber 1130 fluid-communicates with the elongatemain body 1110, wherein the fluid-communication chamber 1130 isconfigured to cooperate with the actuation mechanism 1140 to dispense acosmetic-fluid out of the elongate main body; a distal cosmetic-fluidoutlet structure 1171 fluid-communicating with the fluid-communicationchamber 1130, wherein the distal cosmetic-fluid outlet structure 1171 isdisposed out of the main body 1110; and a cap 1180 removably coupled tothe elongate main body 1110 at the first end portion 1115.

Referring to FIG. 13 and FIG. 14, the elongate main body 1110 is hollowand having a fluid receiving space formed therein, in which thecosmetic-fluid may be stored. The elongate main body 1110 may be made ofa transparent material or a translucent material so that thecosmetic-fluid contained therein may be visible to the outside. Suchmaterials may include glass or synthetic resin materials. In the sideportion of the elongate main body 1110, the first opening 1113 isdefined, through which the actuation mechanism 1140 passes.

The fluid-communication chamber 1130 is disposed within the elongatemain body 1110. The fluid-communication chamber 1130 includes a chamberbody 1132 having a cylindrical space defined therein, and acosmetic-fluid outlet guide 1131 in fluid-communication with the chamberbody 1132. The cosmetic-fluid outlet guide 1131 is influid-communication with the distal cosmetic-fluid outlet structure1171. The chamber body 1132 has a fluid-inlet hole 1132 a formed in oneof lateral side walls thereof opposite to the guide 1131, a fluid-outlethole 1132 b fluid-communicating with the cosmetic-fluid outlet guide1131, and a second opening 1132 c position-corresponding to the firstopening 1113. The cosmetic fluid stored in the main body 1110 flows intothe cylindrical space in the chamber body 1132 through the fluid-inlethole 1132 a.

The actuation mechanism 1140 includes a pushed portion 1141 a protrudingout of the elongate main body 1110 to receive an external force, aninsertable cylinder 1141 b connected to the pushed portion 1141 a andpassing through the first and second openings 1113 and 1132 c, and afirst elastic member 1143 disposed on a bottom of the insertablecylinder 1141 b and within the cylindrical space in the chamber body1132. The first elastic member 1143 is elastically deformed via theinsertable cylinder 1141 b when an external force is applied to thepushed portion 1141 a. Then, the first elastic member 1143 is restoredby an elastic restoring force when the external force is released,thereby to allow the insertable cylinder 1141 b to return to its homeposition.

The actuation mechanism 1140 includes a proximal sealing ring 1145coupled to the insertable cylinder 1141 b. The proximal sealing ring1145 serves to prevent the escape of cosmetic fluid out of thecylindrical space of the chamber body when the insertable cylinder 1141b moves from the first direction to the second direction or from thesecond direction to the first direction.

The proximal sealing ring 1145 prevents air flow in and out of thecylindrical space of the chamber body through the first opening 1113.The cylindrical space in the chamber body 1132 is kept airtight by theproximal sealing ring 1145 to prevent the cosmetic fluid in thecylindrical space in the chamber body from flowing out of the spacethrough the first opening 113. This prevents cosmetic-fluid leakagethrough the first opening 1113 in the process of repeatedly applying anexternal force to the actuation mechanism 1140 in order that the useruses the cosmetic-fluid. Thus, the cosmetic-fluid is not deposited on apart of the user's body. Further, this prevents the cosmetic-fluid fromgetting on the outer surface of the cosmetic-fluid dispenser.

When moving the actuation mechanism 1140 from the first direction to thesecond direction or from the second direction to the first direction,the proximal sealing ring 1145 moves along the cylindrical inner sidewall of the chamber body 1132 while being coupled to the insertablecylinder 1141 b. This prevents leakage of the cosmetic-fluid receivedwithin the cylindrical space through the first opening 1113.

Specifically, the proximal sealing ring 1145 is engaged with theproximal end 1141 f of the inserted portion of the insertable cylinder1141 b. The proximal sealing ring 1145 projects further outward than theouter diameter of the portion 1141 d between the proximal end and thedistal end of the inserted portion of the insertable cylinder 1141 b.Thereby, the proximal sealing ring 1145 is compressed by the cylindricalinner wall of the chamber body 1132 to have a size corresponding to thediameter of the cylindrical space of the chamber body 1132.

In this connection, the insertable cylinder 1141 b has a portion 1141 dbetween the proximal end and the distal end of the inserted portion ofthe insertable cylinder, the portion 1141 d having a diametersubstantially equal to the diameter of the cylindrical space of thechamber body 1132. The proximal end 1141 f of the inserted portion ofthe insertable cylinder 1141 b and the distal end 1141 e of the insertedportion of the insertable cylinder 1141 b both have a smaller diameterthan the portion 1141 d between the proximal end and the distal end ofthe inserted portion of the insertable cylinder.

The actuation mechanism 1140 further includes a distal sealing ring 1147coupled to the insertable cylinder 1141 b. The distal sealing ring 1147slides along the cylindrical inner wall of the chamber body 1132 whenthe insertable cylinder 1141 b moves from the first direction to thesecond direction or from the second direction to the first direction.

The distal sealing ring 1147 is joined to the distal end 1141 e of theinserted portion of the insertable cylinder. The distal sealing ring1147 further projects outwardly beyond the diameter of the portion 1141d between the proximal and distal ends of the inserted portion of theinsertable cylinder 1141 b. The distal sealing ring 1147 is compressedby the inner wall of the chamber body 1132 to have a diametersubstantially the same as the diameter of the cylindrical space of thechamber body 1132.

In this connection, the distal sealing ring 1147 may be made of amaterial having an elastic force that can be deformed by an externalforce.

When an external force is applied to the pushed portion 1141 a of theactuation mechanism 1140, the insertable cylinder 1141 b is displacedfrom the first position to the second position in the first direction.The displacement of the insertable cylinder 1141 b from the firstposition to the second position means movement of the cylinder 1141 binto the cylindrical space of the chamber body 1132. At this time, theinsertable cylinder 1141 b slides along the inner cylindrical wall incontact with the inner cylindrical wall of the chamber body 1132.

The proximal sealing ring 1145 coupled to the proximal end 1141 f of theinserted portion of the insertable cylinder, and the distal sealing ring1147 coupled to the distal end 1141 e of the inserted portion of theinsertable cylinder moves along and on the inner cylindrical wall of thechamber body while contacting the inner cylindrical wall. The proximalsealing ring 1145 and the distal sealing ring 1147 are therebycompressed by the inner cylindrical wall of the chamber body 1132. Thus,the proximal sealing ring 1145 and the distal sealing ring 1147 aresliding along the inner cylindrical wall of the chamber body 1132 whilepressing against the inner cylindrical wall of the chamber body 1132.

At this time, a portion of the cylindrical space of the chamber body1132, which is located below the distal sealing ring 1147, is sealed bythe distal sealing ring 1147. As a result, a pressure to discharge thecosmetic-fluid from the cylindrical space of the chamber body to thecosmetic-fluid outlet guide 1131 rises. Thereby, the cosmetic-fluid flowinto the cosmetic-fluid outlet guide 1131 is effectively realized.

More specifically, the distal sealing ring 1147 prevents the loss ofcosmetic-fluid, which may otherwise occur when the fluid leaks throughthe fine gap between the outer face of the insertable cylinder 1141 band the inner cylindrical wall of the chamber body 1132. Thereby, thecosmetic-fluid outflow from within the cylindrical space of the chamberbody to the cosmetic-fluid outlet guide 1131 is effectively realized.This outflow is realized with a stronger pressure, compared to the casewhere the distal sealing ring 1147 is absent.

In addition, the user must apply an external force to the pushed portion1141 a sufficient to overcome the frictional force between the distalsealing ring 1147 and the inner cylindrical wall of the chamber body1132. Therefore, as compared with the case where the distal sealing ring1147 is not provided, a stronger external force must be applied to thepushed portion 141 a.

The actuation mechanism 1140 may further include a step portion 1141 cformed between the pushed portion 1141 a and the insertable cylinder1141 b and protruding outwardly out of the main body 110.

After the actuation mechanism 1140 is inserted into the first opening1113, an outer housing 1160 having a third opening 1161 formed thereinto a diameter corresponding to an outer diameter of the step portion1141 c surrounds a portion of the elongate main body 1110 having thefirst opening 1113 defined therein. In this regard, the outer housing1160 may be coupled to the elongate main body 1110 such that the firstopening 1113 and the third opening 1161 communicate with each other.When the external force applied to the actuation mechanism 1140 isreleased, the insertable cylinder 1141 b is supported by the outerhousing 1160, so that the actuation mechanism 1140 may be prevented fromescape out of the main body 1110.

In an upper end of the step portion 1141 c, a protrusion-receiving holeh is formed in which a protrusion r from the pushed portion 1141 a isinserted. When the protrusion r from the pushed portion 1141 a isreceived in the protrusion-receiving hole h, the pushed portion 1141 aand the insertable cylinder 1141 b are engaged with each other.

In this connection, a size of a cross-sectional area of the pushedportion 1141 a is larger than a size of a cross-sectional area of thestep portion 1141 c. As a result, a contact area of the pushed portion1141 a with a part of the user's body is increased, so that the user canmore easily apply the external force to the pushed portion 1141 a.

The fluid-communication chamber 1130 is inserted into the elongate mainbody 1110. The fluid-communication chamber 1130 is located below theactuation mechanism 1140 such that the pressurization of thecosmetic-fluid contained in the chamber 1130 by the actuation mechanism1140 is facilitated. The cosmetic-fluid of the amount (volume)corresponding to the external force applied to the actuation mechanism1140 is discharged out of the main body 1110 through the distalcosmetic-fluid outlet structure 1171.

The cylindrical space within the chamber body of the fluid-communicationchamber 1130 is reduced by a first volume by the actuation mechanism1140 being displaced in the first direction by the applied externalforce, and thus the fluid amount corresponding to the first volume flowsout through the cosmetic-fluid outlet guide 131 to the distalcosmetic-fluid outlet structure 1171. To the contrary, when the appliedexternal force is released, the actuation mechanism 1140 is displaced inthe second direction opposite to the first direction, such that thecylindrical space in the chamber body of the fluid-communication chamber1130 is expanded by the first volume. At this time, the cosmetic fluidstored in the elongate main body 1110 flows into the cylindrical spacein the chamber body to compensate for the expanded first volume. Thisoperation principle will be described in detail with reference to FIG.15 to FIG. 17.

A sealing cap 1150 is inserted within the second end of the elongatemain body 1110 to seal the second end.

The distal cosmetic-fluid outlet structure 1171 has an outlet hole 1171a formed in its downstream region for discharging the cosmetic-fluid,and an inserted portion 1171 b formed in the upstream region thereof andinserted into a distal end of the cosmetic-fluid outlet guide 1131.

The outlet hole 1171 a may be formed in an elliptical shape so that theoutlet hole 1171 a may be closely adhered to the skin of the user.According to an embodiment of the present disclosure, a cosmetic brush(not shown) may be coupled to the outlet hole portion. As a result, thecosmetic fluid drained through the outlet hole may be absorbed into theuser's skin via the soft brush. In this way, the user may use thecosmetic-fluid for skin beauty while feeling the touch of the softbrush.

When the inserted portion 1171 b is inserted into the distal end of thecosmetic-fluid outlet guide 1131, a spacing Q is defined between anouter peripheral surface of the inserted portion 1171 b and an innerperipheral surface of the cosmetic-fluid outlet guide 1131.

The inserted portion 1171 b has a first inserted sub-portion 1171 c, asecond inserted sub-portion 1171 d, and a hole-opening/closing member1173.

The first inserted sub-portion 1171 c defines therein a firstfluid-communication channel V1 in fluid-communication with the outlethole 1171 a. The first inserted sub-portion 1171 c has a firstfluid-communication hole H1 defined therein to allow communicationbetween the first fluid-communication channel V1 and the spacing Q.

The second inserted sub-portion 1171 d defines therein a secondfluid-communication channel V2 in fluid-communication with thefluid-outlet hole 1132 b. The second inserted sub-portion 1171 d has asecond fluid-communication hole H2 that allows fluid-communicationbetween the second fluid-communication channel V2 and the spacing Q.

The hole-opening/closing member 1173 is constructed to surround thesecond fluid-communication hole H2. The hole-opening/closing member 1173controls the flow of cosmetic-fluid through the secondfluid-communication hole H2.

Specifically, when an external force is applied to the actuationmechanism 1140, the hole-opening/closing member 1173 is elasticallydeformed via a pressure generated by the cosmetic-fluid moving in thedistal end direction of the cosmetic-fluid outlet guide 1131 through thefluid-outlet hole 1132 b, thereby to open the second fluid-communicationhole H2. When the external force applied to the actuation mechanism 1140is released such that the pressure is weakened, the hole-opening/closingmember 1173 is restored by an elastic restoring force, thereby to closethe second fluid-communication hole H2.

The hole-opening/closing member 1173 may be implemented as a kind of athin rubber film which surrounds the outer circumference of the secondinserted sub-portion 1171 d and controls the opening and closing of thesecond fluid-communication hole H2.

The cosmetic-fluid dispenser further includes a compressing member 1190disposed within the inner space of the elongate main body 1110. Thecompressing member 1190 divides the inner space of the main body 1110into a first inner sub-space S1 and a second inner sub-space S2. Thefirst inner sub-space is formed between the compressing member 1190 andthe fluid-communication chamber 1130, and the cosmetic-fluid is storedin the first inner sub-space. When the external force applied to theactuation mechanism 1140 is released, a first volume of cosmetic-fluidfrom the cosmetic-fluid stored in the first inner sub-space S1 passesthrough the fluid-inlet hole 1132 a into the cylindrical space of thechamber body 1132. At the same time, the compressing member 1190 isdisplaced along the inner face of the elongate main body 1110 such thatthe volume of the first inner sub-space is reduced by the first volume.

The second inner sub-space is formed between the compressing member 1190and the sealing cap 1150. When the volume of the first inner sub-spaceis reduced by the first volume, the volume of the second inner sub-spaceis expanded by the first volume.

A detailed description of the compressing member 1190 will be given whenan operation mechanism of the cosmetic-fluid dispenser based on theabsence or presence of the external force thereto will be described withreference to FIG. 15 to FIG. 17.

FIG. 15 and FIG. 16 are schematic views illustrating a state where anexternal force is applied to the actuation mechanism of thecosmetic-fluid dispenser according to an embodiment of the presentdisclosure. FIG. 17 is a schematic view illustrating a state in whichthe external force applied to the actuation mechanism of thecosmetic-fluid dispenser according to an embodiment of the presentdisclosure is released.

Referring to FIG. 15 and FIG. 16, after the cap 1180 is removed, when auser who wishes to use the cosmetic-fluid dispenser applies an externalforce in a first direction onto the pushed portion 1141 a using a part(a finger) of his or her body, the insertable cylinder 1141 b isdisplaced from the first position to the second position along the firstdirection. In this connection, since the movement of the insertablecylinder 1141 b from the first position to the second position refers tothe movement of the cylinder 1141 b into the cylindrical space in thechamber body 1132, the volume of the cylindrical space of the chamberbody 1132 is reduced by the inserted portion of the insertable cylinder1141 b.

In this connection, the volume of the cylindrical space of the chamberbody is reduced by the first volume. In other words, a portion of theinsertable cylinder 1141 b corresponding to the first volume is insertedinto the cylindrical space in the chamber body. As the pushed portion1141 a moves from the first position to the second position, the firstelastic member 143 elastically deforms in a compressed manner.

In response to the displacement of the insertable cylinder 1141 b intothe cylindrical space of the chamber body, the cosmetic-fluid containedwithin the cylindrical space of the chamber body is transferred to thedistal cosmetic-fluid outlet structure 1171 through the cosmetic-fluidoutlet guide 1131.

In this connection, a cosmetic-fluid outflow path from the cylindricalspace of the chamber body may include an outflow path through thecosmetic-fluid outlet guide 1131 and an outflow path through thefluid-inlet hole 1132 a. However, during movement of the insertablecylinder 1141 b from the first position to the second position, thefluid-inlet hole 1132 a is closed by the insertable cylinder. Theoutflow path through the fluid-inlet hole 1132 a may be deactivated.Thus, the cosmetic fluid in the cylindrical space of the chamber bodymay outflow only via the outflow path through the cosmetic-fluid outletguide 1131. Accordingly, the user may use the cosmetic-fluid dischargedthrough the distal cosmetic-fluid outlet structure 1171.

When an external force is applied to the pushed portion 1141 a, theinsertable cylinder 1141 b is displaced from the first position to thesecond position. At this time, the insertable cylinder 1141 b slidesalong and on the inner side wall face of the chamber body 1131. Thus,the insertable cylinder 1141 b blocks the fluid-inlet hole 1132 adefined in the side wall of the chamber body 1132, thereby to close thefluid-inlet hole 1132 a defined in the side wall of the chamber body1132, thereby restricting the movement of the cosmetic-fluid through thefluid-inlet hole 1132 a.

As for the operation of the insertable cylinder 1141 b, when an externalforce is applied to the pushed portion 1141 a, the insertable cylinder1141 b is displaced from the first position to the second position,while when the external force applied to the pushed portion 1141 a isreleased, the insertable cylinder 1141 b is displaced via the firstelastic member 143 from the second position to the first position. Whenthe insertable cylinder 1141 b is at the second position, the insertablecylinder 1141 b contacts the side wall of the chamber body 1132 to closethe fluid-inlet hole 1132 a defined in the side wall of the chamber body1132, thereby restricting the movement of the cosmetic-fluid through thefluid-inlet hole 1132 a. When the insertable cylinder 1141 b is at thefirst position, and thus does not block the fluid-inlet hole 1132,thereby to open the fluid-inlet hole 1132, whereby the movement of thecosmetic-fluid through the fluid-inlet hole 1132 a is activated.

The hole-opening/closing member 1173 opens the secondfluid-communication hole H2 via pressure generated from thecosmetic-fluid moving through the fluid-outlet hole 1132 b from withinthe cylindrical space of the chamber body 1132. Thus, the cosmetic fluidcontained in the second fluid-communication channel V2, which could notescape out of the channel V2 through the second fluid-communication holeH2, now passes through the second fluid-communication hole H2, thespacing Q, the first fluid-communication hole H1 and the firstfluid-communication channel V1 in this order. In this way, the fluid maybe discharged out of the outlet hole 1171 a.

As the cosmetic fluid contained in the second fluid-communicationchannel V2 flows out through the second fluid-communication hole H2, thepressure applied to the hole-opening/closing member 1173 weakens. As aresult, the hole-opening/closing member 1173 is resiliently restored byelastic restoring force, thereby to close the second fluid-communicationhole H2. In this connection, the cosmetic fluid contained in thefluid-communication chamber 1132 is consumed by an amount of thecosmetic-fluid exiting through the outlet hole 1171 a.

Referring to FIG. 17, when the external force applied to the pushedportion 1141 a is released, the first elastic member 1143 elasticallydeformed in a compressed manner is elastically deformed in such a mannerthat it is expanded by its restoring force. Accordingly, thedisplacement of the pushed portion 1141 a from the second position tothe first position is realized.

In this connection, the insertable cylinder 1141 b inserted in thecylindrical space of the chamber body 1132 is displaced in the seconddirection from within the cylindrical space of the chamber body. As theinsertable cylinder 1141 b is displaced in the second direction, anempty space of the first volume is created in the cylindrical space ofthe chamber body. In this regard, since the fluid-inlet hole 1132 a isopened during displacement of the insertable cylinder 1141 b in thesecond direction, the void volume of the first volume is filled with thecosmetic-fluid moved from the first inner sub-space S1 through thefluid-inlet hole 1132 a.

Specifically, the first opening 1113 is kept airtight by the proximalsealing ring 1145, thereby preventing air from flowing through the firstopening 1113. Accordingly, since there is no inflow of air into thecylindrical space of the chamber body 1132, the empty space of the firstvolume is at a vacuum state. In this connection, the cosmetic-fluidstored in the first inner sub-space S1 of the elongate main body 1110 issucked through the fluid-inlet hole 1132 a into the empty portion of thecylindrical space of the chamber body at this vacuum state. Using thissucking phenomenon, a constant amount of cosmetic-fluid may be kept inthe cylindrical space of the chamber body.

In this connection, since the cosmetic-fluid outlet guide 1131 which mayact as a cosmetic-fluid movement path on the other side of the chamberbody 1132 into the cylindrical space of the body 1132, is blocked by theopening/closing member 1173, the cosmetic-fluid inflow may be realizedonly through the fluid-inlet hole 1132 a.

In order for the cosmetic fluid to move from the first inner sub-spaceS1 of the elongate main body 1110 into the cylindrical space of thechamber body through the fluid-inlet hole 1132 a, only thecosmetic-fluid should be present in the first inner sub-space S1.Therefore, since the fluid of the first volume has been emitted from thefirst inner sub-space S1, the volume of the first inner sub-space S1must be variable to remove air creation therein.

To this end, the cosmetic-fluid dispenser according to the presentdisclosure comprises the compressing member 1190. The compressing member1190 may define the first inner sub-space S1 and prevent the inflow ofair into the space S1.

The compressing member 1190 may be displaced in a sliding manner alongand on the inner face of the elongate main body 1110. This displacementis based on the volume change of the space S1 due to the outflow of thecosmetic fluid from the first inner sub-space S1.

Specifically, since there is only the cosmetic-fluid in the first innersub-space S1, the empty space in the space S1, which occurs in responseto the outflow of the cosmetic-fluid, must be filled with air or anexternal substance. In this regard, the compressing member 1190 preventsinflow of the external air or material into the first inner sub-spaceS1, so that the inner volume of the first inner sub-space S1 is reducedto remove the empty space, thereby to enable the cosmetic-fluid outflowtherefrom.

The compressing member 1190 divides the inner space of the elongate mainbody 1110 into the first inner sub-space S1 and the second innersub-space S2. When the external force applied to the actuation mechanism1140 is released so that the first volume of cosmetic-fluid from thecosmetic-fluid stored in the first inner sub-space S1 passes through thefluid-inlet hole 1132 a into the cylindrical space of the chamber body,the compressing member 1190 is slidably moved along and one the innerface of the elongate main body 1110 such that the volume of the firstinner sub-space S1 is reduced by the first volume.

At the same time, the second inner sub-space S2 divided by thecompressing member 1190 is correspondingly expanded as the volume of thefirst inner sub-space S1 is reduced.

In this connection, the sealing cap 1150 has an air-communication hole1152 defined therein, which allows air-communication between the secondinner sub-space S2 and an exterior space of the cosmetic-fluid dispenser1. The air-communication hole 1152 serves as a channel through which,when the second inner sub-space S2 is expanded by the first volume, theoutside air of the same volume as the first volume flows into the secondinner sub-space S2.

On the other hand, the cosmetic-fluid of an amount corresponding to thefirst volume from the cosmetic-fluid stored in the elongate main body1110 is transferred into the cylindrical space of the chamber body.Thus, the cosmetic fluid contained within the cylindrical space of thechamber body 1132 is in a standby state ready to receive the externalforce from the user again.

After using the cosmetic-fluid exiting through the distal cosmetic-fluidoutlet structure 1171, when the user determines that the cosmetic-fluidis further needed, the user may re-apply an external force onto thepushed portion 1141 a of the actuation mechanism 1140, which has movedfrom the second position to the first position. In this way, theabove-described series of processes may be repeated.

According to the embodiment described above, the chamber body 1132 isdescribed as being removably inserted into the elongate main body 1110.However, the present disclosure is not limited thereto. In oneembodiment, the chamber body 1132 may be integral with the elongate mainbody 1110.

FIG. 18 is an exploded perspective view of a cosmetic-fluid dispenseraccording to one embodiment of the present disclosure.

Referring to FIG. 18, the cosmetic-fluid dispenser according to thisembodiment of the present disclosure has the same configuration andeffect as those of the cosmetic-fluid dispenser as shown in FIG. 13 toFIG. 17 except for a removable cosmetic-fluid storage unit 1290. Thus,hereinafter, only the removable cosmetic-fluid storage unit 1290 will bedescribed.

The removable cosmetic-fluid storage unit 1290 may accommodate therein acompressing member 1293 with the same configuration as that as describedabove, and may be removably inserted into the elongate main body 1110.

Specifically, the removable cosmetic-fluid storage unit 1290 includes aremovable elongate body 1291 having an inner space therein, andremovably inserted into the inner space of the elongate main body 1110;the compressing member 1293 dividing the inner space of the removableelongate body 1291 into the third inner sub-space S3 and the fourthinner sub-space S4; and a sealing cap 1295 to seal the inner space ofthe removable elongate body 1291 and the second end of the elongate mainbody 1110. The cosmetic-fluid is stored in the third inner sub-space S3formed between the compressing member 1293 and the fluid-communicationchamber 1130. When the external force applied to the actuation mechanism1140 is released so that the cosmetic-fluid of the same volume as thefirst-volume from the cosmetic-fluid stored in the third inner sub-spaceS3 passes through the fluid-inlet hole 1132 a into the cylindrical spaceof the chamber body 1132, the compressing member 1293 is displaced in asliding manner along and on the inner face of the removable elongatebody 1291 so that the volume of the third inner sub-space S3 is reducedby the first volume.

In this connection, the removable cosmetic-fluid storage unit 1290 maybe separately manufactured and then removably inserted into the elongatemain body 1110. Thus, when the removable cosmetic-fluid storage unit1290 is separated from the elongate main body 1110, the cosmetic-fluidmay be refilled into the removable cosmetic-fluid storage unit 1290which in turn may be inserted into the elongate main body 1110. Thisallows the cosmetic-fluid dispenser to be refilled with thecosmetic-fluid.

To this end, the removable cosmetic-fluid storage unit 1290 may bereleasably coupled to the elongate main body 1110 by threaded-typeengagement. In this connection, the sealing cap 1295 has acoin-insertion hole 1297 defined therein, into which a portion of acommon coin may be inserted. Thereby, when the coin is inserted into thecoin-insertion hole 1297 and then the user rotates the coin, thethreaded-type engagement may be activated or deactivated.

An outer sealing ring 1291 a is disposed on the outer surface of theremovable elongate body 1291 to improve the bonding force with the innersurface of the elongate main body 1110 when the removable elongate body1291 is inserted into the inner space of the elongate main body 1110.The outer sealing ring 1291 a is made of a rubber material havingelasticity. When the removable cosmetic-fluid storage unit 1290 isinserted into the elongate main body 1110, the outer sealing ring 1291 ais deformed in contact with the inner surface of the elongate main body1110, thereby maintaining the airtightness between the removableelongate body 1291 and the elongate main body 1110 and improving thebonding force therebetween.

FIG. 19 and FIG. 20 are schematic views for illustrating acosmetic-fluid dispenser according to one embodiment of the presentdisclosure.

Referring to FIG. 19 and FIG. 20, the cosmetic-fluid dispenser accordingto this embodiment of the present disclosure has the same configurationand effect as those of the cosmetic-fluid dispenser as shown in FIG. 13to FIG. 17, except for a removable cosmetic-fluid storage unit 1390.Hereinafter, thus, only the removable cosmetic-fluid storage unit 1390will be described.

In FIG. 19 and FIG. 20, a removable elongate body 1391 and a sealing cap1395 are separately shown for the sake of convenience of illustration.However, actually, the removable elongate body 1391 and the sealing cap1395 are integrally formed.

The removable cosmetic-fluid storage unit 1390 is inserted into theinner space of the elongate main body 1110. The removable cosmetic-fluidstorage unit 1390 may be coupled to the elongate main body 1110 in apress-fit manner rather than in a threaded type engagement manner.

To this end, the removable cosmetic-fluid storage unit 1390 has at leastone outer protrusion ring 1398 which protrudes from and extends along anouter circumferential surface thereof. The elongate main body 1110 hasat least one inner groove ring, each having a position and shapecorresponding to those of each outer protrusion ring 1398.

The coupling between the removable cosmetic-fluid storage unit 1390 andthe elongate main body 1110 may be realized by engagement between theouter protrusion ring 1398 and the inner groove ring (not shown).

The sealing cap 1395 includes a removing-force receiving portion 1396protruding from an outer end face of the cap 1395 and having apassing-through hole 1396 a defined therein. The user removes theremovable cosmetic-fluid storage unit 1395 from the elongate main body1110 by inserting a ring-shaped remover (not shown) into thepassing-through hole 1396 a and pulling away the remover.

Specifically, the ring-shaped remover has a dimension corresponding to adimension of the passing-through hole 1396 a. The ring-shaped removermay be used to separate the removable cosmetic-fluid storage unit 1390from the elongate main body 1110.

To remove the removable cosmetic-fluid storage unit 1390 from theelongate main body 1110, the user inserts the ring-shaped remover intothe passing-through hole 1396 a and then pull the ring-shaped remover ina direction such that the removable cosmetic-fluid storage unit 1390moves away from the main body 1110. This removes the combination of theremovable elongate body 1391 and the sealing cap 1395 from the elongatemain body 1110.

The sealing cap 1395 may have an air-communication hole 1395 a definedtherein for performing the same function as the air-communication hole1152 described above.

FIG. 21A is a perspective view of a cosmetic-fluid dispenser accordingto one embodiment of the present disclosure. FIG. 21B is a perspectiveview illustrating a state where a cap is separated from a man body inthe cosmetic-fluid dispenser in FIG. 21A.

Referring to FIG. 21A and FIG. 121B, the cosmetic-fluid dispenseraccording to this embodiment of the present disclosure includes anelongate main body 11110 having a main inner space storing acosmetic-fluid therein, and a first opening 11113 defined therein,through which the actuation mechanism 11140 passes; afluid-communication chamber 11130 disposed in the inner space of theelongate main body 11110, wherein a distal cosmetic-fluid outletstructure 11171 is fluid-communicated with the fluid-communicationchamber 11130, through which the cosmetic-fluid outflows; and a cap11180 coupled to a first end 11115 of the elongate main body 11110.

In this connection, the cosmetic-fluid stored in the inner space of theelongate main body 11110 may be of various types of cosmetic-fluidshaving a viscosity sufficient to flow through the distal cosmetic-fluidoutlet structure 11171.

In this embodiment, when the cap 11180 is separated from the elongatemain body 11110, the distal cosmetic-fluid outlet structure 11171 isexposed. When the cap 11180 is coupled with the elongate main body11110, the distal cosmetic-fluid outlet structure 11171 is hidden withinthe cap 11180. After the cap 11180 is separated from the elongate mainbody 11110, when an external force is applied to the actuation mechanism11140, a certain amount of cosmetic-fluid flows out through the distalcosmetic-fluid outlet structure 11171.

The cap 11180 may be configured to cover the distal cosmetic-fluidoutlet structure 11171 through which the cosmetic-fluid flows. The cap11180 may have various shapes and may be made of a material differentfrom the elongate main body 11110.

FIG. 22A is an exploded perspective view of the cosmetic-fluid dispenserof FIG. 21A. FIG. 22B illustrates a fluid-communication chamber in FIG.22A. FIG. 23 is a cross-sectional view of the cosmetic-fluid dispenseraccording to FIG. 21A. FIG. 24 is a cross-sectional view of thecosmetic-fluid dispenser according to FIG. 21B.

Referring to FIG. 22A and FIG. 24, the cosmetic-fluid dispenseraccording to this embodiment of the present disclosure includes anactuation mechanism 11140 configured to allow selective dispensing of acosmetic-fluid; a elongate main body 11110 having opposite first andsecond end portions, and a first opening 11113 defined in a side portionthereof, wherein the elongate main body contains therein acosmetic-fluid, wherein the actuation mechanism 11140 passes through thefirst opening 11113; a fluid-communication chamber 11130 disposed in thefirst end portion of the elongate main body 11110, wherein thefluid-communication chamber 11130 fluid-communicates with the elongatemain body 11110, wherein the fluid-communication chamber 11130 isconfigured to cooperate with the actuation mechanism 11140 to dispense acosmetic-fluid out of the elongate main body; a distal cosmetic-fluidoutlet structure 11171 fluid-communicating with the fluid-communicationchamber 11130, wherein the distal cosmetic-fluid outlet structure 11171is disposed out of the main body 11110; and a cap 11180 removablycoupled to the elongate main body 11110 at the first end portion 11115.

Referring to FIG. 22A and FIG. 24, the elongate main body 11110 ishollow and having a fluid receiving space formed therein, in which thecosmetic-fluid may be stored. The elongate main body 11110 may be madeof a transparent material or a translucent material so that thecosmetic-fluid contained therein may be visible to the outside. Suchmaterials may include glass or synthetic resin materials. In the sideportion of the elongate main body 11110, the first opening 11113 isdefined, through which the actuation mechanism 11140 passes.

The fluid-communication chamber 11130 is disposed within the elongatemain body 11110. The fluid-communication chamber 11130 includes achamber body 11132 having a cylindrical space defined therein, and acosmetic-fluid outlet guide 11131 in fluid-communication with thechamber body 11132. The cosmetic-fluid outlet guide 11131 is influid-communication with the distal cosmetic-fluid outlet structure11171. The chamber body 11132 has a fluid-inlet hole 11132 a formed inone of lateral side walls thereof opposite to the guide 11131, afluid-outlet hole 11132 b fluid-communicating with the cosmetic-fluidoutlet guide 11131, and a second opening 11132 c position-correspondingto the first opening 11113. The cosmetic fluid stored in the main body11110 flows into the cylindrical space in the chamber body 11132 throughthe fluid-inlet hole 11132 a.

Thus, the cosmetic fluid flowing into the cylindrical space of thechamber body 11132 (in this example, the body has a rectangular boxshape) is pressurized by the actuation mechanism 11140 passing throughthe second opening 11132 c into the cylindrical space. Thus, thecosmetic fluid from the cylindrical space may outflow through thefluid-outlet hole 11132 b, the guide 11131, and the cosmetic-fluidoutlet 11171.

The actuation mechanism 11140 includes a pushed portion 11141 aprotruding out of the elongate main body 11110 to receive an externalforce, an insertable cylinder 11141 b connected to the pushed portion11141 a and passing through the first and second openings 11113 and11132 c, and a first elastic member 11143 disposed on a bottom of theinsertable cylinder 11141 b and within the cylindrical space in thechamber body 11132. The first elastic member 11143 is elasticallydeformed via the insertable cylinder 11141 b when an external force isapplied to the pushed portion 11141 a. Then, the first elastic member11143 is restored by an elastic restoring force when the external forceis released, thereby to allow the insertable cylinder 11141 b to returnto its home position.

The actuation mechanism 11140 includes a proximal sealing ring 11145coupled to the insertable cylinder 11141 b. The proximal sealing ring11145 serves to prevent the escape of cosmetic fluid out of thecylindrical space of the chamber body when the insertable cylinder 11141b moves from the first direction to the second direction or from thesecond direction to the first direction. In this connection, the firstor second direction may refer to a direction perpendicular to thelongitudinal direction of the elongate main body 11110.

The proximal sealing ring 11145 prevents air flow in and out of thecylindrical space of the chamber body through the first opening 11113.The cylindrical space in the chamber body 11132 is kept airtight by theproximal sealing ring 11145 to prevent the cosmetic fluid in thecylindrical space in the chamber body from flowing out of the spacethrough the first opening 1113. This prevents cosmetic-fluid leakagethrough the first opening 11113 in the process of repeatedly applying anexternal force to the actuation mechanism 11140 in order that the useruses the cosmetic-fluid. Thus, the cosmetic-fluid is not deposited on apart of the user's body. Further, this prevents the cosmetic-fluid fromgetting on the outer surface of the cosmetic-fluid dispenser.

When moving the actuation mechanism 11140 from the first direction tothe second direction or from the second direction to the firstdirection, the proximal sealing ring 11145 moves along the cylindricalinner side wall of the chamber body 11132 while being coupled to theinsertable cylinder 11141 b. This prevents leakage of the cosmetic-fluidreceived within the cylindrical space through the first opening 11113.

Specifically, the proximal sealing ring 11145 is engaged with theproximal end 11141 f of the inserted portion of the insertable cylinder11141 b. The proximal sealing ring 11145 projects further outward thanthe outer diameter of the portion 11141 d between the proximal end andthe distal end of the inserted portion of the insertable cylinder 11141b. Thereby, the proximal sealing ring 11145 is compressed by thecylindrical inner wall of the chamber body 11132 to have a sizecorresponding to the diameter of the cylindrical space of the chamberbody 11132.

In this connection, the insertable cylinder 11141 b has a portion 11141d between the proximal end and the distal end of the inserted portion ofthe insertable cylinder, the portion 11141 d having a diametersubstantially equal to the diameter of the cylindrical space of thechamber body 11132. The proximal end 11141 f of the inserted portion ofthe insertable cylinder 11141 b and the distal end 11141 e of theinserted portion of the insertable cylinder 11141 b both have a smallerdiameter than the portion 11141 d between the proximal end and thedistal end of the inserted portion of the insertable cylinder.

The actuation mechanism 11140 further includes a distal sealing ring11147 coupled to the insertable cylinder 11141 b. The distal sealingring 11147 slides along the cylindrical inner wall of the chamber body11132 when the insertable cylinder 11141 b moves from the firstdirection to the second direction or from the second direction to thefirst direction.

The distal sealing ring 11147 is joined to the distal end 11141 e of theinserted portion of the insertable cylinder. The distal sealing ring11147 further projects outwardly beyond the diameter of the portion11141 d between the proximal and distal ends of the inserted portion ofthe insertable cylinder 11141 b. The distal sealing ring 11147 iscompressed by the inner wall of the chamber body 11132 to have adiameter substantially the same as the diameter of the cylindrical spaceof the chamber body 11132.

In this connection, the distal sealing ring 11147 may be made of amaterial having an elastic force that can be deformed by an externalforce.

When an external force is applied to the pushed portion 11141 a of theactuation mechanism 11140, the insertable cylinder 11141 b is displacedfrom the first position to the second position in the first direction.The displacement of the insertable cylinder 11141 b from the firstposition to the second position means movement of the cylinder 11141 binto the cylindrical space of the chamber body 11132. At this time, theinsertable cylinder 11141 b slides along the inner cylindrical wall incontact with the inner cylindrical wall of the chamber body 11132.

The proximal sealing ring 11145 coupled to the proximal end 11141 f ofthe inserted portion of the insertable cylinder, and the distal sealingring 11147 coupled to the distal end 11141 e of the inserted portion ofthe insertable cylinder moves along and on the inner cylindrical wall ofthe chamber body while contacting the inner cylindrical wall. Theproximal sealing ring 11145 and the distal sealing ring 11147 arethereby compressed by the inner cylindrical wall of the chamber body11132. Thus, the proximal sealing ring 11145 and the distal sealing ring11147 are sliding along the inner cylindrical wall of the chamber body11132 while pressing against the inner cylindrical wall of the chamberbody 11132.

At this time, a portion of the cylindrical space of the chamber body11132, which is located below the distal sealing ring 11147, is sealedby the distal sealing ring 11147. As a result, a pressure to dischargethe cosmetic-fluid from the cylindrical space of the chamber body to thecosmetic-fluid outlet guide 11131 rises. Thereby, the cosmetic-fluidflow into the cosmetic-fluid outlet guide 11131 is effectively realized.

More specifically, the distal sealing ring 11147 prevents the loss ofcosmetic-fluid, which may otherwise occur when the fluid leaks throughthe fine gap between the outer face of the insertable cylinder 11141 band the inner cylindrical wall of the chamber body 11132. Thereby, thecosmetic-fluid outflow from within the cylindrical space of the chamberbody to the cosmetic-fluid outlet guide 11131 is effectively realized.This outflow is realized with a stronger pressure, compared to the casewhere the distal sealing ring 11147 is absent.

In addition, the user must apply an external force to the pushed portion11141 a sufficient to overcome the frictional force between the distalsealing ring 11147 and the inner cylindrical wall of the chamber body11132. Therefore, as compared with the case where the distal sealingring 11147 is not provided, a stronger external force must be applied tothe pushed portion 141 a.

The actuation mechanism 11140 may further include a step portion 11141 cformed between the pushed portion 11141 a and the insertable cylinder11141 b and protruding outwardly out of the main body 1110.

After the actuation mechanism 11140 is inserted into the first opening11113, an outer housing 11160 having a third opening 11161 formedtherein to a diameter corresponding to an outer diameter of the stepportion 11141 c surrounds a portion of the elongate main body 11110having the first opening 11113 defined therein. In this regard, theouter housing 11160 may be coupled to the elongate main body 11110 suchthat the first opening 11113 and the third opening 11161 communicatewith each other. When the external force applied to the actuationmechanism 11140 is released, the insertable cylinder 11141 b issupported by the outer housing 11160, so that the actuation mechanism11140 may be prevented from escape out of the main body 11110.

In an upper end of the step portion 11141 c, a protrusion-receiving holeh is formed in which a protrusion r from the pushed portion 11141 a isinserted. When the protrusion r from the pushed portion 11141 a isreceived in the protrusion-receiving hole h, the pushed portion 11141 aand the insertable cylinder 11141 b are engaged with each other.

In this connection, a size of a cross-sectional area of the pushedportion 11141 a is larger than a size of a cross-sectional area of thestep portion 11141 c. As a result, a contact area of the pushed portion11141 a with a part of the user's body is increased, so that the usercan more easily apply the external force to the pushed portion 11141 a.

The fluid-communication chamber 11130 is inserted into the elongate mainbody 11110. The fluid-communication chamber 11130 is located below theactuation mechanism 11140 such that the pressurization of thecosmetic-fluid contained in the chamber 11130 by the actuation mechanism11140 is facilitated. The cosmetic-fluid of the amount (volume)corresponding to the external force applied to the actuation mechanism11140 is discharged out of the main body 11110 through the distalcosmetic-fluid outlet structure 11171.

The fluid-communication chamber 11130 may be inserted into the innerspace of the elongate main body 11110. The fluid-communication chamber11130 includes the chamber body 11132 having the cylindrical spacedefined therein, and the cosmetic-fluid outlet guide 11131 influid-communication with the chamber body 11132. The cosmetic-fluidoutlet guide 11131 is in fluid-communication with the distalcosmetic-fluid outlet structure 11171. The chamber body 11132 has thefluid-inlet hole 11132 a formed in one of lateral side walls thereofopposite to the guide 11131, the fluid-outlet hole 11132 bfluid-communicating with the cosmetic-fluid outlet guide 11131, and thesecond opening 11132 c position-corresponding to the first opening11113. The cosmetic fluid stored in the main body 11110 flows into thecylindrical space in the chamber body 11132 through the fluid-inlet hole11132 a.

In this embodiment, the fluid-communication chamber 11130 may bedifferent from the fluid-communication chamber as described withreference to the above-defined embodiments.

In this embodiment, the fluid-communication chamber 11130 may has acosmetic-fluid inlet guide 11330 coupled thereto such that one end ofthe cosmetic-fluid inlet guide 11330 communicates with the fluid-inlethole 11132 a. The cosmetic-fluid inlet guide 11330 passes through theside wall of the chamber body 11132. The other end of the cosmetic-fluidinlet guide 11330 communicates with the first inner sub-space S1.

The fluid-communication chamber 11130 further includes the hollowcosmetic-fluid inlet guide 11330 having one end in fluid communicationwith the fluid-inlet hole 11132 a and the other end protruding into thefirst inner sub-space S1; a hole-opening/closing member elastic support11340 received in the other end portion of the cosmetic-fluid inletguide 11330 and configured to support a hole-opening/closing member11350; the hole-opening/closing member 11350 disposed at the distal endof the hole-opening/closing member elastic support 11340; and a hollowelongate cover 11360 surrounding the other end of the cosmetic-fluidinlet guide 11330, wherein the hollow elongate cover has first andsecond holes 11361 and 11362 defined in one end and the other endthereof respectively, wherein a portion thereof contacting thehole-opening/closing member 11350 has a truncated cone shape.

One end of the cosmetic-fluid inlet guide 11330 has a diameter largerthan a diameter of the fluid-inlet hole 11132 a so as to surround thefluid-inlet hole 11132 a. A diameter of the first hole 11361 of thehollow elongate cover 11360 is greater than a diameter of its secondhole 11362. Thus, the distal end of the hollow elongate cover 11360 hasa truncated cone shape. The hole-opening/closing member 11350 isdisposed at the distal end of the hole-opening/closing member elasticsupport 11340 and has a spherical shape. The hole-opening/closing member11350 can reversibly open and close the second opening 11362 of thehollow elongate cover 11360 via a force exerted by thehole-opening/closing member elastic support 11340.

When the actuation mechanism is lowered, the second opening 11362 of thehollow elongate cover 11360 is closed via the hole-opening/closingmember elastic support 11340 and the hole-opening/closing member 11350,thus, to limit the flow of the cosmetic-fluid through the fluid-inlethole 11132 a. When the actuation mechanism is elevated, the secondopening 11362 is opened to allow the flow of the cosmetic fluid throughthe fluid-inlet hole 11132 a to be activated.

In one embodiment, the hole-opening/closing member elastic support 11340may be implemented with a spring. The hole-opening/closing memberelastic support 11340 is received within the cosmetic-fluid inlet guide11330 and extends from one end to the other end of a portion of thecosmetic-fluid inlet guide 11330 protruding into the space s1. Thehole-opening/closing member 11350 is disposed at the distal end of thehole-opening/closing member elastic support 11340. Thehole-opening/closing member 11350 is configured to close the secondopening 11362 of the hollow elongate cover 11360. The diameter t1 of thecosmetic-fluid inlet guide 11330 is greater than the diameter of thefluid-inlet hole 11132 a. Thus, the hole-opening/closing member elasticsupport 11340 received in the cosmetic-fluid inlet guide 11330 does notenter the fluid-inlet hole 11132 a and is retained within thecosmetic-fluid inlet guide 11330.

When the pressure of the cosmetic-fluid in the cylindrical space of thechamber body is not high, the hole-opening/closing member elasticsupport 11340 does not press the hole-opening/closing member 11350 sothat the second opening 11362 is not closed. Thereby, movement of thecosmetic-fluid through the second opening 11362 is possible. On theother hand, when the pressure within the cylindrical space of thechamber body is high, the cosmetic-fluid presses thehole-opening/closing member elastic support 11340, thereby pressing thehole-opening/closing member 11350, thus to block the flow of fluidthrough the second opening 11362.

The cosmetic-fluid inlet guide 11330 has an elongate hollow cylindricalshape. The hollow elongate cover 11360 has a larger inner diameter thanan outer diameter of the cosmetic-fluid inlet guide 11330 to accommodatethe cosmetic-fluid inlet guide 11330 therein. The hollow elongate cover11360 has an elongate hollow cylindrical shape. A portion of the hollowelongate cover 11360 in contact with the hole-opening/closing member11350 has a truncated-conical shape to surround the hole-opening/closingmember 11350 exposed outwardly from the cosmetic-fluid inlet guide11330. The cosmetic-fluid inlet guide 11330 is inserted into the hollowelongate cover 11360 so that the hole-opening/closing member elasticsupport 11340 and the hole-opening/closing member 11350 received withinthe cosmetic-fluid inlet guide 11330 is not prevented from escapetherefrom.

A first fastening ring 11331 is formed on the outer circumference of thecosmetic-fluid inlet guide 11330 and a second fastening ring 11362 isformed on the inner circumference of the hollow elongate cover 11360.Via the engagement between the first fastening ring 11331 and the secondfastening ring 11362, the hollow elongate cover 11360 is tightly coupledto the cosmetic-fluid inlet guide 11330. The cosmetic-fluid inlet guide11330 is inserted into the hollow elongate cover 11360 such that thefluid-inlet hole 11132 a and the second opening 11362 of the hollowelongate cover 11360 are arranged so as to fluid-communicate with eachother.

In one embodiment, the first fastening ring 11331 and the secondfastening ring 11362 are implemented with a protrusion and a grooverespectively. The first fastening ring 11331 and the second fasteningring 11362 may be engaged with each other by pressure-fitting.Alternatively, the first fastening ring 11331 and the second fasteningring 11362 are realized by a groove and a protrusion respectively.Alternatively, the first fastening ring 11331 and the second fasteningring 11362 may be engaged with each other by a thread-type engagementmanner. The first and second fastening rings 11331 and 11362 areintended to securely secure the hollow elongate cover 11360 to thecosmetic-fluid inlet guide 11330. Thus, as long as this object isachieved by the first and second fastening rings 11331 and 11362,various configurations of the first and second fastening rings 11331 and11362 may be considered.

The cylindrical space within the chamber body of the fluid-communicationchamber 11130 is reduced by a first volume by the actuation mechanism11140 being displaced in the first direction by the applied externalforce, and thus the fluid amount corresponding to the first volume flowsout through the cosmetic-fluid outlet guide 11131 to the distalcosmetic-fluid outlet structure 11171. To the contrary, when the appliedexternal force is released, the actuation mechanism 11140 is displacedin the second direction opposite to the first direction, such that thecylindrical space in the chamber body of the fluid-communication chamber11130 is expanded by the first volume. At this time, the cosmetic fluidstored in the elongate main body 11110 flows through the second opening11362, and the fluid inlet guide 11330 into the cylindrical space in thechamber body 11132 to compensate for the expanded first volume.

In other words, when an external force is applied, the actuationmechanism 11140 is displaced in a first direction such that at least aportion thereof is inserted into the cylindrical space of the chamberbody and thus, the first volume of the cosmetic-fluid from thecosmetic-fluid contained in the cylindrical space is flowed through thefluid outlet hole 11132 b into the distal cosmetic-fluid outletstructure 11171. When the applied external force is released, theactuation mechanism 11140 is displaced in a second direction opposite tothe first direction, the cosmetic-fluid of the first volume isintroduced from the inner sub-space S1 through the second opening 11362,the fluid inlet guide 11330, and the fluid-inlet hole 11132 a into thecylindrical space of the chamber body 11132. This operation principlewill be described in detail with reference to FIG. 25 to FIG. 27.

The sealing cap 11150 is inserted within the second end of the elongatemain body 11110 to seal the second end.

The distal cosmetic-fluid outlet structure 11171 has an outlet hole11171 a formed in its downstream region for discharging thecosmetic-fluid, and an inserted portion 11171 b formed in the upstreamregion thereof and inserted into a distal end of the cosmetic-fluidoutlet guide 11131.

The outlet hole 11171 a may be formed in an elliptical shape so that theoutlet hole 11171 a may be closely adhered to the skin of the user.According to an embodiment of the present disclosure, a cosmetic brush(not shown) may be coupled to the outlet hole portion. As a result, thecosmetic fluid drained through the outlet hole may be absorbed into theuser's skin via the soft brush. In this way, the user may use thecosmetic-fluid for skin beauty while feeling the touch of the softbrush.

When the inserted portion 11171 b is inserted into the distal end of thecosmetic-fluid outlet guide 11131, a spacing Q is defined between anouter peripheral surface of the inserted portion 11171 b and an innerperipheral surface of the cosmetic-fluid outlet guide 11131.

The inserted portion 11171 b has a first inserted sub-portion 11171 c, asecond inserted sub-portion 11171 d, and a hole-opening/closing member11173.

The first inserted sub-portion 11171 c defines therein a firstfluid-communication channel V1 in fluid-communication with the outlethole 11171 a. The first inserted sub-portion 11171 c has a firstfluid-communication hole H1 defined therein to allow communicationbetween the first fluid-communication channel V1 and the spacing Q.

The second inserted sub-portion 11171 d defines therein a secondfluid-communication channel V2 in fluid-communication with thefluid-outlet hole 11132 b. The second inserted sub-portion 11171 d has asecond fluid-communication hole H2 that allows fluid-communicationbetween the second fluid-communication channel V2 and the spacing Q.

The hole-opening/closing member 11173 is constructed to surround thesecond fluid-communication hole H2. The hole-opening/closing member11173 controls the flow of cosmetic-fluid through the secondfluid-communication hole H2.

Specifically, when an external force is applied to the actuationmechanism 11140, the hole-opening/closing member 11173 is elasticallydeformed via a pressure generated by the cosmetic-fluid moving in thedistal end direction of the cosmetic-fluid outlet guide 11131 throughthe fluid-outlet hole 11132 b, thereby to open the secondfluid-communication hole H2. When the external force applied to theactuation mechanism 11140 is released such that the pressure isweakened, the hole-opening/closing member 11173 is restored by anelastic restoring force, thereby to close the second fluid-communicationhole H2.

The hole-opening/closing member 11173 may be implemented as a kind of athin rubber film which surrounds the outer circumference of the secondinserted sub-portion 11171 d and controls the opening and closing of thesecond fluid-communication hole H2.

The cosmetic-fluid dispenser further includes a compressing member 11190disposed within the inner space of the elongate main body 11110. Thecompressing member 11190 divides the inner space of the main body 11110into a first inner sub-space S1 and a second inner sub-space S2. Thefirst inner sub-space is formed between the compressing member 11190 andthe fluid-communication chamber 11130, and the cosmetic-fluid is storedin the first inner sub-space. When the external force applied to theactuation mechanism 11140 is released, a first volume of cosmetic-fluidfrom the cosmetic-fluid stored in the first inner sub-space S1 passesthrough the fluid-inlet hole 11132 a into the cylindrical space of thechamber body 11132. At the same time, the compressing member 11190 isdisplaced along the inner face of the elongate main body 11110 such thatthe volume of the first inner sub-space is reduced by the first volume.

The second inner sub-space is formed between the compressing member11190 and the sealing cap 11150. When the volume of the first innersub-space is reduced by the first volume, the volume of the second innersub-space is expanded by the first volume.

A detailed description of the compressing member 11190 will be givenwhen an operation mechanism of the cosmetic-fluid dispenser based on theabsence or presence of the external force thereto will be described withreference to FIG. 25 to FIG. 27.

FIG. 25 and FIG. 26 are schematic views illustrating a state where anexternal force is applied to the actuation mechanism of thecosmetic-fluid dispenser according to an embodiment of the presentdisclosure. FIG. 27 is a schematic view illustrating a state in whichthe external force applied to the actuation mechanism of thecosmetic-fluid dispenser according to an embodiment of the presentdisclosure is released.

Referring to FIG. 25 and FIG. 26, after the cap 11180 is removed, when auser who wishes to use the cosmetic-fluid dispenser applies an externalforce in a first direction onto the pushed portion 11141 a using a part(a finger) of his or her body, the insertable cylinder 11141 b isdisplaced from the first position to the second position along the firstdirection. In this connection, since the movement of the insertablecylinder 11141 b from the first position to the second position refersto the movement of the cylinder 11141 b into the cylindrical space inthe chamber body 11132, the volume of the cylindrical space of thechamber body 11132 is reduced by the inserted portion of the insertablecylinder 11141 b.

In this connection, the volume of the cylindrical space of the chamberbody is reduced by the first volume. In other words, a portion of theinsertable cylinder 11141 b corresponding to the first volume isinserted into the cylindrical space in the chamber body. As the pushedportion 11141 a moves from the first position to the second position,the first elastic member 143 elastically deforms in a compressed manner.

In response to the displacement of the insertable cylinder 11141 b intothe cylindrical space of the chamber body, the cosmetic-fluid containedwithin the cylindrical space of the chamber body is transferred to thedistal cosmetic-fluid outlet structure 11171 through the cosmetic-fluidoutlet guide 11131.

In this connection, a cosmetic-fluid outflow path from the cylindricalspace of the chamber body may include an outflow path through thecosmetic-fluid outlet guide 11131 and an outflow path through thefluid-inlet hole 11132 a. However, during movement of the insertablecylinder 11141 b from the first position to the second position, thefluid-inlet hole 11132 a is closed by the insertable cylinder. Theoutflow path through the fluid-inlet hole 11132 a may be deactivated.Thus, the cosmetic fluid in the cylindrical space of the chamber bodymay outflow only via the outflow path through the cosmetic-fluid outletguide 11131. Accordingly, the user may use the cosmetic-fluid dischargedthrough the distal cosmetic-fluid outlet structure 11171.

A detailed description of the closure of the fluid-inlet hole 11132 a isas follows: the insertable cylinder 11141 b is inserted into thecylindrical space of the chamber body 11132 to increase the pressure ofthe cosmetic-fluid in the cylindrical space. As the pressure of thecosmetic-fluid increases, the cosmetic-fluid enters the fluid inletguide 11330 through the fluid-inlet hole 11132 c and presses thehole-opening/closing member elastic support 11340. As such, thehole-opening/closing member 11350 in contact with the distal end of thehole-opening/closing member elastic support 11340 closes the secondopening 11362 of the elongate hollow cover 11360. Thereby, an equivalenteffect to the effect of closing the fluid-inlet hole 11132 a isobtained. This prevents the outflow or inflow of the cosmetic fluidthrough the fluid-inlet hole 11132 c.

As for the operation of the insertable cylinder 11141 b, when anexternal force is applied to the pushed portion 11141 a, the insertablecylinder 11141 b is displaced from the first position to the secondposition, while when the external force applied to the pushed portion11141 a is released, the insertable cylinder 11141 b is displaced viathe first elastic member 143 from the second position to the firstposition. When the insertable cylinder 11141 b is at the secondposition, the insertable cylinder 11141 b contacts the side wall of thechamber body 11132 to close the fluid-inlet hole 11132 a defined in theside wall of the chamber body 11132, thereby restricting the movement ofthe cosmetic-fluid through the fluid-inlet hole 11132 a. When theinsertable cylinder 11141 b is at the first position, and thus does notblock the fluid-inlet hole 11132, thereby to open the fluid-inlet hole11132, whereby the movement of the cosmetic-fluid through thefluid-inlet hole 11132 a is activated.

The hole-opening/closing member 11173 opens the secondfluid-communication hole H2 via pressure generated from thecosmetic-fluid moving through the fluid-outlet hole 11132 b from withinthe cylindrical space of the chamber body 11132. Thus, the cosmeticfluid contained in the second fluid-communication channel V2, whichcould not escape out of the channel V2 through the secondfluid-communication hole H2, now passes through the secondfluid-communication hole H2, the spacing Q, the firstfluid-communication hole H1 and the first fluid-communication channel V1in this order. In this way, the fluid may be discharged out of theoutlet hole 11171 a.

As the cosmetic fluid contained in the second fluid-communicationchannel V2 flows out through the second fluid-communication hole H2, thepressure applied to the hole-opening/closing member 11173 weakens. As aresult, the hole-opening/closing member 11173 is resiliently restored byelastic restoring force, thereby to close the second fluid-communicationhole H2. In this connection, the cosmetic fluid contained in thefluid-communication chamber 11132 is consumed by an amount of thecosmetic-fluid exiting through the outlet hole 11171 a.

Referring to FIG. 27, when the external force applied to the pushedportion 11141 a is released, the first elastic member 11143 elasticallydeformed in a compressed manner is elastically deformed in such a mannerthat it is expanded by its restoring force. Accordingly, thedisplacement of the pushed portion 11141 a from the second position tothe first position is realized.

In this connection, the insertable cylinder 11141 b inserted in thecylindrical space of the chamber body 11132 is displaced in the seconddirection from within the cylindrical space of the chamber body. As theinsertable cylinder 11141 b is displaced in the second direction, anempty space of the first volume is created in the cylindrical space ofthe chamber body. Accordingly, the pressure applied to thehole-opening/closing member 11350 by the hole-opening/closing memberelastic support 11340 received inside the fluid inlet guide 11330 isweakened. This reduces the force by which the hole-opening/closingmember 11350 closes the second opening 11362, so that the cosmetic-fluidenters through the second opening 11362. Thus, the cosmetic-fluid flowsfrom the sub-space S1 through the fluid inlet guide 11330 into thefluid-inlet hole 11132 a. Thereby, the first volume of the void space inthe cylindrical space of the chamber body is eventually filled with thefluid.

Specifically, the first opening 11113 is kept airtight by the proximalsealing ring 11145, thereby preventing air from flowing through thefirst opening 11113. Accordingly, since there is no inflow of air intothe cylindrical space of the chamber body 11132, the empty space of thefirst volume is at a vacuum state. In this connection, thecosmetic-fluid stored in the first inner sub-space S1 of the elongatemain body 11110 is sucked through the fluid-inlet hole 11132 a into theempty portion of the cylindrical space of the chamber body at thisvacuum state. Using this sucking phenomenon, a constant amount ofcosmetic-fluid may be kept in the cylindrical space of the chamber body.

In this connection, since the second fluid communication channel H2which may act as a cosmetic-fluid movement path on the other side of thechamber body 11132 into the cylindrical space of the body 11132, isblocked by the opening/closing member 11173, the cosmetic-fluid inflowinto the cylindrical space may be realized only through the fluid-inlethole 11132 a.

In order for the cosmetic fluid to move from the first inner sub-spaceS1 of the elongate main body 11110 into the cylindrical space of thechamber body through the fluid-inlet hole 11132 a, only thecosmetic-fluid should be present in the first inner sub-space S1.Therefore, since the fluid of the first volume has been emitted from thefirst inner sub-space S1, the volume of the first inner sub-space S1must be variable to remove air creation therein.

To this end, the cosmetic-fluid dispenser according to the presentdisclosure comprises the compressing member 11190. The compressingmember 11190 may define the first inner sub-space S1 and prevent theinflow of air into the space S1.

The compressing member 11190 may be displaced in a sliding manner alongand on the inner face of the elongate main body 11110. This displacementis based on the volume change of the space S1 due to the outflow of thecosmetic fluid from the first inner sub-space S1.

Specifically, since there is only the cosmetic-fluid in the first innersub-space S1, the empty space in the space S1, which occurs in responseto the outflow of the cosmetic-fluid, must be filled with air or anexternal substance. In this regard, the compressing member 11190prevents inflow of the external air or material into the first innersub-space S1, so that the inner volume of the first inner sub-space S1is reduced to remove the empty space, thereby to enable thecosmetic-fluid outflow therefrom.

The compressing member 11190 divides the inner space of the elongatemain body 11110 into the first inner sub-space S1 and the second innersub-space S2. When the external force applied to the actuation mechanism11140 is released so that the first volume of cosmetic-fluid from thecosmetic-fluid stored in the first inner sub-space S1 passes through thefluid-inlet hole 11132 a into the cylindrical space of the chamber body,the compressing member 11190 is slidably moved along and one the innerface of the elongate main body 11110 such that the volume of the firstinner sub-space S1 is reduced by the first volume.

At the same time, the second inner sub-space S2 divided by thecompressing member 11190 is correspondingly expanded as the volume ofthe first inner sub-space S1 is reduced.

In this connection, the sealing cap 11150 has an air-communication hole11152 defined therein, which allows air-communication between the secondinner sub-space S2 and an exterior space of the cosmetic-fluid dispenser1. The air-communication hole 11152 serves as a channel through which,when the second inner sub-space S2 is expanded by the first volume, theoutside air of the same volume as the first volume flows into the secondinner sub-space S2.

On the other hand, the cosmetic-fluid of an amount corresponding to thefirst volume from the cosmetic-fluid stored in the elongate main body11110 is transferred into the cylindrical space of the chamber body.Thus, the cosmetic fluid contained within the cylindrical space of thechamber body 11132 is in a standby state ready to receive the externalforce from the user again.

After using the cosmetic-fluid exiting through the distal cosmetic-fluidoutlet structure 11171, when the user determines that the cosmetic-fluidis further needed, the user may re-apply an external force onto thepushed portion 11141 a of the actuation mechanism 11140, which has movedfrom the second position to the first position. In this way, theabove-described series of processes may be repeated.

According to the embodiment described above, the chamber body 11132 isdescribed as being removably inserted into the elongate main body 11110.However, the present disclosure is not limited thereto. In oneembodiment, the chamber body 11132 may be integral with the elongatemain body 11110.

FIG. 28 is an exploded perspective view of a cosmetic-fluid dispenseraccording to one embodiment of the present disclosure.

Referring to FIG. 28, the cosmetic-fluid dispenser according to thisembodiment of the present disclosure has the same configuration andeffect as those of the cosmetic-fluid dispenser as shown in FIG. 23 toFIG. 27 except for a removable cosmetic-fluid storage unit 11290. Thus,hereinafter, only the removable cosmetic-fluid storage unit 11290 willbe described.

The removable cosmetic-fluid storage unit 11290 may accommodate thereina compressing member 11293 with the same configuration as that asdescribed above, and may be removably inserted into the elongate mainbody 11110.

Specifically, the removable cosmetic-fluid storage unit 11290 includes aremovable elongate body 11291 having an inner space therein, andremovably inserted into the inner space of the elongate main body 11110;the compressing member 11293 dividing the inner space of the removableelongate body 11291 into the third inner sub-space S3 and the fourthinner sub-space S4; and a sealing cap 11295 to seal the inner space ofthe removable elongate body 11291 and the second end of the elongatemain body 11110. The cosmetic-fluid is stored in the third innersub-space S3 formed between the compressing member 11293 and thefluid-communication chamber 11130. When the external force applied tothe actuation mechanism 11140 is released so that the cosmetic-fluid ofthe same volume as the first-volume from the cosmetic-fluid stored inthe third inner sub-space S3 passes through the fluid-inlet hole 11132 ainto the cylindrical space of the chamber body 11132, the compressingmember 11293 is displaced in a sliding manner along and on the innerface of the removable elongate body 11291 so that the volume of thethird inner sub-space S3 is reduced by the first volume.

In this connection, the removable cosmetic-fluid storage unit 11290 maybe separately manufactured and then removably inserted into the elongatemain body 11110. Thus, when the removable cosmetic-fluid storage unit11290 is separated from the elongate main body 11110, the cosmetic-fluidmay be refilled into the removable cosmetic-fluid storage unit 11290which in turn may be inserted into the elongate main body 11110. Thisallows the cosmetic-fluid dispenser to be refilled with thecosmetic-fluid.

To this end, the removable cosmetic-fluid storage unit 11290 may bereleasably coupled to the elongate main body 11110 by threaded-typeengagement. In this connection, the sealing cap 11295 has acoin-insertion hole 11297 defined therein, into which a portion of acommon coin may be inserted. Thereby, when the coin is inserted into thecoin-insertion hole 11297 and then the user rotates the coin, thethreaded-type engagement may be activated or deactivated.

An outer sealing ring 11291 a is disposed on the outer surface of theremovable elongate body 11291 to improve the bonding force with theinner surface of the elongate main body 11110 when the removableelongate body 11291 is inserted into the inner space of the elongatemain body 11110. The outer sealing ring 11291 a is made of a rubbermaterial having elasticity. When the removable cosmetic-fluid storageunit 11290 is inserted into the elongate main body 11110, the outersealing ring 11291 a is deformed in contact with the inner surface ofthe elongate main body 11110, thereby maintaining the airtightnessbetween the removable elongate body 11291 and the elongate main body11110 and improving the bonding force therebetween.

FIG. 29 and FIG. 30 are schematic views for illustrating acosmetic-fluid dispenser according to one embodiment of the presentdisclosure.

Referring to FIG. 29 and FIG. 30, the cosmetic-fluid dispenser accordingto this embodiment of the present disclosure has the same configurationand effect as those of the cosmetic-fluid dispenser as shown in FIG. 23to FIG. 27, except for a removable cosmetic-fluid storage unit 11390.Hereinafter, thus, only the removable cosmetic-fluid storage unit 11390will be described.

In FIG. 29 and FIG. 30, a removable elongate body 11391 and a sealingcap 11395 are separately shown for the sake of convenience ofillustration. However, actually, the removable elongate body 11391 andthe sealing cap 11395 are integrally formed.

The removable cosmetic-fluid storage unit 11390 is inserted into theinner space of the elongate main body 11110. The removablecosmetic-fluid storage unit 11390 may be coupled to the elongate mainbody 11110 in a press-fit manner rather than in a threaded typeengagement manner.

To this end, the removable cosmetic-fluid storage unit 11390 has atleast one outer protrusion ring 11398 which protrudes from and extendsalong an outer circumferential surface thereof. The elongate main body11110 has at least one inner groove ring, each having a position andshape corresponding to those of each outer protrusion ring 11398.

The coupling between the removable cosmetic-fluid storage unit 11390 andthe elongate main body 11110 may be realized by engagement between theouter protrusion ring 11398 and the inner groove ring (not shown).

The sealing cap 11395 includes a removing-force receiving portion 11396protruding from an outer end face of the cap 11395 and having apassing-through hole 11396 a defined therein. The user removes theremovable cosmetic-fluid storage unit 11395 from the elongate main body11110 by inserting a ring-shaped remover (not shown) into thepassing-through hole 11396 a and pulling away the remover.

Specifically, the ring-shaped remover has a dimension corresponding to adimension of the passing-through hole 11396 a. The ring-shaped removermay be used to separate the removable cosmetic-fluid storage unit 11390from the elongate main body 11110.

To remove the removable cosmetic-fluid storage unit 11390 from theelongate main body 11110, the user inserts the ring-shaped remover intothe passing-through hole 11396 a and then pull the ring-shaped removerin a direction such that the removable cosmetic-fluid storage unit 11390moves away from the main body 11110. This removes the combination of theremovable elongate body 11391 and the sealing cap 11395 from theelongate main body 11110.

The sealing cap 11395 may have an air-communication hole 11395 a definedtherein for performing the same function as the air-communication hole11152 described above.

FIG. 31 is a cross-sectional view of a cosmetic-fluid dispenseraccording to one embodiment of the present disclosure. FIGS. 32 and 33are schematic views for illustrating a state where an external force isapplied to an actuation mechanism of the cosmetic-fluid dispenser ofFIG. 31.

Referring to FIG. 31 to FIG. 33, the cosmetic-fluid dispenser accordingto this embodiment of the present disclosure has the same structure asthose of FIG. 21 to FIG. 30, except for those as described below.Therefore, the repeated contents are omitted.

Referring to FIG. 31 to FIG. 33, the cosmetic-fluid dispenser accordingto this embodiment further includes a fluid-outlet control ball 11475housed within a distal cosmetic-fluid outlet structure 11471. Thefluid-outlet control ball 11475 can control the amount of cosmetic-fluidexiting through the distal cosmetic-fluid outlet structure 11471.

The distal cosmetic-fluid outlet structure 11471 has an outlet hole11471 a formed in its downstream region for discharging thecosmetic-fluid, and an inserted portion 11471 c formed in the upstreamregion thereof and inserted into a distal end of the cosmetic-fluidoutlet guide 11431.

The outlet hole 11471 a may be formed in an elliptical shape so that theoutlet hole 11471 a may be closely adhered to the skin of the user.According to an embodiment of the present disclosure, a cosmetic brush(not shown) may be coupled to the outlet hole portion. As a result, thecosmetic fluid drained through the outlet hole may be absorbed into theuser's skin via the soft brush. In this way, the user may use thecosmetic-fluid for skin beauty while feeling the touch of the softbrush.

An inner diameter of the distal end portion of the cosmetic-fluid outletguide 11431 is larger than an inner diameter of a middle extensionportion of the cosmetic-fluid outlet guide 11431. The inserted portion11471 c of the distal cosmetic-fluid outlet structure 11471 is insertedinto the distal end of the cosmetic-fluid outlet guide 11431.

According to this embodiment of the present disclosure, a second elasticmember 11473 is disposed between an outer peripheral surface of theinserted portion 11471 c of the distal cosmetic-fluid outlet structure11471 and an inner peripheral surface of the distal end portion of thecosmetic-fluid outlet guide 11431. At a rear end of the second elasticmember 11473, the outlet-control ball 11475 having a larger diameterthan that of a middle extension portion of the cosmetic-fluid outletguide 11431 may be disposed.

In this connection, when an external force is applied to the actuationmechanism 140, the outlet-control ball 11475 is subjected to a pressuregenerated by the cosmetic-fluid moving in the distal end direction ofthe cosmetic-fluid outlet guide 11431 through the fluid-outlet hole11432 b, and, thus, is moved in a third direction. When the pressuregenerated by the cosmetic-fluid is weakened, the outlet-control ball11475 is moved by the second elastic member 11473 in a fourth directionopposite to the third direction. Thereby, the outlet-control ball 11475closes an inlet hole 11431 b formed in a boundary region between thedistal end and the middle extension portion of the cosmetic-fluid outletguide 11431.

In the cosmetic-fluid dispenser according to this embodiment, the distalcosmetic-fluid outlet structure 11471 for discharging cosmetic-fluidfrom the cylindrical space to the outside, and the fluid inlet guide11330 for introducing the cosmetic-fluid stored in the first innersub-space S1 into the cylindrical space may be disposed toward both sidefaces of the actuation mechanism 11440 respectively. In this regard, theoutlet-control ball 11475 and the hole-opening/closing ball 11350 may bereceived within the distal cosmetic-fluid outlet structure 11471 and thefluid inlet guide 11330, respectively.

As shown in FIG. 32, when the actuation mechanism 11440 is pusheddownwards in the first direction, the second elastic member 11473receives an pressure, and, thus, is moved in a third directionperpendicular to the first direction, i.e., in a direction toward thedistal cosmetic-fluid outlet structure 11471. Thereby, theoutlet-control ball 11475 opens the inlet hole 11431 b. As a result, thecosmetic-fluid and air are discharged to the outside through the distalcosmetic-fluid outlet structure 11471. At the same time, thehole-opening/closing member elastic support 11340 presses thehole-opening/closing member 11350 in a fourth direction opposite to thethird direction, thereby to block the second opening 11362.

As shown in FIG. 33, when the actuation mechanism 11440 moves in thesecond direction, that is, in an upward direction, the second elasticmember 11473 which has been pressed is restored in the fourth direction,whereby the outlet-control ball 11475 closes the distal cosmetic-fluidoutlet structure 11471. At the same time, the hole-opening/closingmember elastic support 11340 is resiliently deformed in the thirddirection so that the hole-opening/closing member 11350 is moved awayfrom the second opening 11362 of the elongate hollow cover 11360 in thethird direction. This causes the cosmetic fluid contained in the firstinner sub-space S1 of the elongate main body to flow into thecylindrical space of the chamber body.

FIG. 34 is a perspective view showing a state of coupling between anelongate main body and a cap according to one embodiment of the presentdisclosure. FIG. 35 is a perspective view showing a state of separationbetween the elongate main body and the cap in FIG. 34.

Referring to FIG. 34 and FIG. 35, the cosmetic-fluid dispenser accordingto the present embodiment includes an elongate main body 21110 forstoring cosmetic-fluid therein and a distal cosmetic-fluid outletstructure 21171 coupled to one end of the elongate main body 21110 toallow the cosmetic-fluid to flow out to the outside. The distalcosmetic-fluid outlet structure 21171 may be coupled to an end extension21130 extending from a distal end 21115 of the elongate main body 21110.The end extension 21130 may be accommodated in an empty space in the cap21180 when the elongate main body 21110 and the cap 21180 are coupledwith each other.

The cap 21180 further includes a fastening rib 21185 projecting from theend of the cap 21180 toward the actuation mechanism 21140 of theelongate main body 2110. The actuation mechanism 21140 includes a pushedportion 21141 receiving an external force, and a step portion 21142connected to the bottom of the pushed portion 21141 so as to support thepushed portion 21141 and having a smaller diameter than that of thepushed portion 21141.

The fastening rib 21185 extends toward the step portion 21142. Thedistal end of the fastening rib 21185 is rounded to correspond to theshape of the outer surface of the step portion 21142. The fastening rib21185 protruding from the cap 21180 coupled to the distal end of theelongate main body 21110 protrudes toward the outer surface of the stepportion 21142 to support the lower end of the pushed portion 21141,thereby to prevent the pushed portion 21141 from being displaced.

When the cap 21180 and the elongate main body 21110 are coupled to eachother, the fastening rib 21185 extending from the cap 21180 contacts theactuation mechanism 21140. Specifically, below the pushed portion 21141,the rounded portion at the distal end of the fastening rib 21185contacts the outer surface of the step portion 21142. The fastening rib21185 occupies a space between the lower end of the pushed portion 21141and the top face of the elongate main body 21110 to prevent the pushedportion 21141 from moving in the downward direction. Thus, while the cap21180 and the elongate main body 21110 are coupled to each other, theposition of the actuation mechanism 21140 is fixed. This can prevent thecosmetic fluid in the elongate main body 21110 from accidentally flowingout through the distal cosmetic-fluid outlet structure 21171.

In one embodiment, a groove and a protrusion, which are engaged witheach other, may be formed at a specific position of the inner surface ofthe cap 21180 and a corresponding position of an inner surface of theelongate main body 21110, respectively. As a result, the fasteningbetween the cap 21180 and the elongate main body 21110 may be made morerigid.

FIG. 36 is a perspective view illustrating of a cosmetic-fluid dispenserin accordance with one embodiment. FIG. 37 is a perspective viewillustrating a state where a cap is separated from a man body in thecosmetic-fluid dispenser in FIG. 36. FIG. 38 is a cross-sectional viewof the cosmetic-fluid dispenser in FIG. 37. FIG. 39 is an explodedperspective view of the cosmetic-fluid dispenser FIG. 36. FIG. 40 is across-sectional view of a front portion of the elongate main body inFIG. 37. FIG. 41 is a schematic view for illustrating an actuationmechanism being subjected to an external force in the FIG. 40.

The cosmetic-fluid dispenser 3100 according to one embodiment of thepresent disclosure includes an actuation mechanism 3140 configured toallow selective dispensing of a cosmetic-fluid; an elongate main body3110 having opposite first and second end portions; wherein the elongatemain body has an inner space S therein defined to contain therein acosmetic-fluid; a fluid-communication chamber 3131 defined in the firstportion of the elongate main body, wherein the actuation mechanism 3140selectively passes through the fluid-communication chamber 3131, whereinthe actuation mechanism 3140 has a top portion exposed out of thefluid-communication chamber 3131 and has an open bottom portion; avertical elastic member 3147 disposed on a bottom face on thefluid-communication chamber 3131 and at least partially inserted throughthe open bottom portion of the actuation mechanism 3140; a chamber bodyportion 3130 having the fluid-communication chamber 3131 definedtherein, wherein the chamber body portion 3130 has an second fluidcommunication channel 3132 a defined therein to allowfluid-communication between the inner space S and thefluid-communication chamber 3131; a distal cosmetic-fluid outletstructure 3171 fluid-communicating with the fluid-communication chamber130 via a an first fluid communication channel 3112 defined in thechamber body portion 3130 and opposite to the second fluid communicationchannel 3132 a; wherein the chamber body portion 3130 is a portion ofthe elongate main body 3110 and a top of the chamber body portion 3130has a first concaved face portion 3131, and wherein an outer face of thetop portion of the actuation mechanism is complementary to the firstconcaved face in a shape. The fluid-communication chamber 130 isconfigured to cooperate with the actuation mechanism 3140 to dispense acosmetic-fluid out of the elongate main body.

The cosmetic-fluid dispenser 3100 includes an inner cap 3120 having asecond concaved face portion 3121 a corresponding to the first concavedface portion 3131 and being engaged with the end of the first portion3115, which is the tip of the elongate main body 3110; and an outer cap3180 having a receiving space 3181 defined therein for receiving thedistal cosmetic-fluid outlet structure 3171 and being engaged with theinner cap 3120.

The inner cap 3120 and the outer cap 3180 are sequentially connected tothe elongate main body 3110. At least a portion of the inner cap 3120faces the outermost surfaces of the outer cap 3180 and the elongate mainbody 3110. The second concaved face portion 3121 defines a space withthe outer cap 3180.

In this connection, the cosmetic-fluid stored in a storage space of theelongate main body 3110 has a sufficient viscosity to be dischargedthrough the distal cosmetic-fluid outlet structure 3171. Thecosmetic-fluid is not particularly limited.

When the outer cap 3180 is separated from the elongate main body 3110,the distal cosmetic-fluid outlet structure 3171 is exposed. Conversely,when the outer cap 3180 is combined with the elongate main body 3110,the distal cosmetic-fluid outlet structure 3171 is concealed within thecap 180. After the outer cap 3180 is separated from the elongate mainbody 3110, when an external force is applied to the actuation mechanism3140, a certain amount of the cosmetic fluid flows out of the elongatemain body 3110 through the distal cosmetic-fluid outlet structure 3171.

The outer cap 3180 may be provided to cover the distal cosmetic-fluidoutlet structure 3171 through which the cosmetic fluid flows. The outercap 3180 may be embodied in various forms. The outer cap 3180 may bemade of the same or different material as the elongate main body 3110.

The elongate main body 3110 has the fluid storage space S definedtherein in which cosmetic fluid is stored, the end of the first portion3115 of the elongate main body 3110 to which the outer cap 3180 isfastened and an end of a second portion opposite the end of the firstportion 3115. The long body extending between the ends of the first andsecond portions may have the storage space S defined therein. Forexample, the elongate main body 3110 may have various shapes such as ahexahedron and a cylindrical shape.

The actuation mechanism 3140 has a form corresponding substantially to afluid-communication chamber 3131 into which the actuation mechanism 3140is inserted. The first elastic member 3147 may be disposed on the bottomsurface of the fluid-communication chamber 3131 below the actuationmechanism 3140. For example, the actuation mechanism 3140 is configuredto be partially exposed to the outside from the fluid-communicationchamber 3131. When the user presses the exposed portion to apply anexternal force, the actuation mechanism 3140 may move up and down in thefluid-communication chamber 3131 via the elastic force of the firstelastic member 3147.

The inner cap 3120 is coupled to the distal end of the elongate mainbody 3110 and has a shape corresponding to the end of the first portion3115 of the elongate main body 3110. The inner cap 3120 is press-fittedwith a ring member 3160 on the distal end of the elongate main body3110. The inner cap 3120 has a shape corresponding to the end of thefirst portion 3115 of the elongate main body 3110. The inner cap 3120 isfastened to the elongate main body 3110 to expose the distalcosmetic-fluid outlet structure 3171. The inner cap 3120 may be fastenedand fixed to the outer cap 3180.

The inner cap 3120 may be configured such different members thereof maybe connected to each other in a stepped manner so that the diameters ofthe inner cap 3120 decrease from one end to the other end. Among thesemembers, the member adjacent to the ring member 3160 has the widestdiameter, while the member inserted into the outer cap 3180 may have anarrowest diameter.

The inner cap 3120 may include a flange portion 3121 having an outerperiphery corresponding to the outer periphery of the elongate main body3110, a middle portion 3122 connected to the flange portion 3121 andhaving a smaller diameter than the flange portion 3121, and a distalportion 3123 connected to the middle portion 3122 and having a smallerdiameter than the middle portion 3122. The distal portion 3123 has ahole through which the distal cosmetic-fluid outlet structure 3171passes. The distal portion 3123 may be made of two sub-portions withdifferent diameters such that the sub-portion defining the hole throughwhich the distal cosmetic-fluid outlet structure 3171 passes has asmaller diameter.

A hole through which the actuation mechanism 3140 passes is formed inthe flange portion 3121 of the inner cap 3120. A portion defining thehole therein through which the actuation mechanism 3140 protrudes outmay define the second concaved face portion 3121 a. Because the secondconcaved face portion 3121 a is more concave, a person applying anexternal force to the actuation mechanism 3140 can easily press theactuation mechanism 3140. For example, when the actuation mechanism 3140is pressed using a human finger, the second concaved face portion 3121 ais provided in a shape corresponding to a human finger. There are nospecial restrictions on its shape as long as the actuation mechanism3140 is easily pressurizable.

In other words, the cosmetic-fluid dispenser 3100 according to thepresent embodiment is characterized in that the elongate main body 3110as a housing receiving the actuation mechanism 3140 and the inner cap3120 have the first and second concaved face portions 3131 and 3121 arespectively. Thus, a space may be reserved for pressurizing theactuation mechanism 3140. Thus, when the actuation mechanism 3140 isexposed out of the fluid-communication chamber 3131, the actuationmechanism 3140 may be prevented from protruding outwardly than theoutermost surface of the elongate main body 3110 and the outer cap 3180.

As described above, in the cosmetic-fluid dispenser 3100 according tothe present embodiment, the first and second concaved face portions 3131and 3121 a may be provided in the section in which the actuationmechanism 3140 to which an external force is applied is disposed.Accordingly, it is possible to prevent unnecessary protruding portionsfrom protruding while suppressing increasing the overall volume of thecosmetic-fluid dispenser 3100. Accordingly, even in the cosmetic-fluiddispenser 3100 having a narrow width, the cosmetic liquid contained inthe cosmetic-fluid dispenser 3100 may be easily discharged in acontrolled amount.

The outer cap 3180 has a receiving space 3181 for receiving the distalcosmetic-fluid outlet structure 3171, and may engage with the inner cap3120. A groove 3182 to be engaged with a protrusion on the inner cap3120 may be provided in an inner face of the receiving space 3181. Theouter circumference of the outer cap 3180 may correspond to the outercircumference of the body 3110 in a shape. For example, when the outercircumference of the body 3110 is cylindrical, the outer circumferenceof the outer cap 3180 may be cylindrical. When the body 3110 is ahexahedron, the outer cap 3180 may be a hexahedron.

An engaging protrusion 3124 is formed on the outer face of the middleportion 3122 of the inner cap 3120. The engaging protrusion 3124 isinserted into the engaging groove 3182 of the outer cap 3180 so that theouter cap 3180 is stably engaged with the body 3110. In this state, theouter cap 3180 can protect the distal cosmetic-fluid outlet structure3171 and suppress contamination of the distal cosmetic-fluid outletstructure 3171.

The middle portion 3122 and the distal portion 3123 of the inner cap3120 are received in the receiving space 3181 of the outer cap 3180. Theengaging protrusion 3124 provided on the middle portion 3122 may beengaged into the engaged groove 3182 of the outer cap 3180.

In the first portion of the elongate main body 3110, the chamber bodyportion 3130 may be defined. The chamber body portion 3130 has thefluid-communication chamber defined therein. The fluid-communicationchamber is configured to control the cosmetic fluid to be dischargedfrom the elongate main body 3110 to the outside through the distalcosmetic-fluid outlet structure 3171.

The chamber body portion 3130 may have the fluid-communication chamber3131 defined in the chamber body portion 3130 and open at an upper endthereof and extending in a first direction perpendicular to thedirection of the escape of cosmetic fluid from the elongate main body3110. The chamber body portion 3130 has the first fluid communicationchannel 3112 defined therein at one side of the fluid-communicationchamber 3131, wherein the first fluid communication channel 3112communicates with the distal cosmetic-fluid outlet structure 3171 andextends in the second direction perpendicular to the first direction.The chamber body portion 3130 has the second fluid communication channel3132 a defined therein at the other side of the fluid-communicationchamber 3131 and wherein the second fluid communication channel 3132 aextends in a direction parallel to the second direction and communicateswith the fluid storage space of the elongate main body 3110. There is ahollow cylindrical tube 3330 having a wider diameter than the secondfluid communication channel 3132 a. The tube 3330 protrudes from theouter face of the chamber body portion 3130 into the storage space S. Afirst opening 3361 opens at least a portion of the proximal end of thehollow cylindrical tube 3330 and communicates with the second fluidcommunication channel 3132 a. A cover 3360 is fitted into the opendistal end of the hollow cylindrical tube 3330 and has a second opening3362 defined therein communicating with the storage space S.Closing/opening means 3350 is configured to reversibly open and closethe second opening 3362 in the cover 3360. A closing/opening meansstopper 3340 may be disposed within the cover 3360 to control movementof the closing/opening means 335.

For example, the fluid-communication chamber 3131 defined in the chamberbody portion 3130 is configured to control the communicating of thefluid between the distal cosmetic-fluid outlet structure 3171 and thestorage space for storing cosmetic fluid stored within the elongate mainbody 3110. By applying an external force to the actuation mechanism 3140to insert the actuation mechanism 3140 into the fluid-communicationchamber 3131, the amount of cosmetic fluid stored in the elongate mainbody 3110 to flow out through the distal cosmetic-fluid outlet structure3171 may be controlled.

The chamber body portion 3130 has the fluid-communication chamber 3131configured to extend vertically in a direction perpendicular to thelongitudinal direction of the elongate main body 3110. In thisconnection, the first fluid communication channel 3112 communicatingwith the fluid-communication chamber 3131 and communicating with thedistal cosmetic-fluid outlet structure 3171 may extend substantially ata middle level at one side of the fluid-communication chamber 3131. Atthe other side of the fluid-communication chamber 3131, that is, at theopposite side to the first fluid communication channel 3112, the secondfluid communication channel 3132 a communicating with the cosmetic fluidstorage space of the elongate main body 3110 and being in fluidcommunication with the fluid-communication chamber 3131 may extend at asubstantially middle level. Thus, the combination of thefluid-communication chamber 3131 and the fluid outlet and inlet channels3112 and 3132 a may form a substantially cross (+) shape.

The actuation mechanism 3140 may be inserted into thefluid-communication chamber 3131 of the chamber body portion 3130 fromthe top surface of the elongate main body 3110. By the up and downmovement of the actuation mechanism 3140, the cosmetic fluid received inthe fluid-communication chamber 3131 flows into the actuation mechanism3140 through the lower opening of the actuation mechanism 3140, or thefluid may flow from the storage space S in the elongate main body intothe actuation mechanism 3140 through the second fluid communicationchannel 3132 a. Subsequently, the fluid may be discharged to the outsidethrough the first fluid communication channel 3112.

The chamber body portion 3130 includes the hollow cylindrical tube 3330having an inner space having a larger diameter than the second fluidcommunication channel 3132 a; the closing/opening means stopper 3340,which is disposed within the hollow cylindrical tube 3330; theclosing/opening means 3350 contacting the distal ends of theclosing/opening means stopper 3340; and the cover 3360, which covers thedistal end of the hollow cylindrical tube 3330 and is fitted therein anddefines, at one end and the other end, the first and second openings3361 and 3362, respectively, wherein the portion of the cover 226 facingthe closing/opening means 3350 have a truncated cone shape.

The inner periphery of the proximal end of the hollow cylindrical tube3330 has a larger diameter than the diameter of the second fluidcommunication channel 3132 a to surround the second fluid communicationchannel 3132 a. The cover 3360 is configured as follows: one end thereofdefining the first opening 3361 is inserted into the hollow cylindricaltube 3330, while the other end defining the second opening 3362 isdisposed outside the hollow cylindrical tube 3330 and the inner face ofthe second opening 3362 may be tapered. Also, the closing/opening meansstopper 3340 may include one or more ribs protruding inwards from theinner face of the cover 3360.

The closing/opening means stopper 3340 may be provided in various formssuch as an elastic member such as a spring or a rod. The closing/openingmeans stopper 3340 may protrude from the inner face of the cover 3360 inthe form of a rib to limit the position of the closing/opening means3350.

The closing/opening means 3350 is disposed adjacent a distal enddefining the second opening 3362 defined in the cover 3360. Theclosing/opening means 3350 may be restricted within the space defined bythe closing/opening means stopper 3340. For example, the closing/openingmeans stopper 3340 may have a semicircular shape, and, threeclosing/opening means stopper 3340 may be spaced apart from each otherat equal intervals on and along the inner face of the cover 3360.

The hollow cylindrical tube 3330 has a groove or protrusion 3331, andthe cover 3360 has the protrusion or groove 3363 to be engaged with thegroove or protrusion 3331. Thus, the cover 3360 may be fixed in closecontact with the hollow cylindrical tube 3330. The inner space of thehollow cylindrical tube 3330 may be configured to fluid-communicate withthe second fluid communication channel 3132 a and to fluid-communicatewith the second opening 3362 of the cover 3360.

At the first position of the closing/opening means 3340 and theclosing/opening means 3350, the second opening 3362 of the cover 3360 isclosed to limit the movement of the cosmetic fluid through the secondfluid communication channel 3132 a. At the second position of theclosing/opening means 3340 and the closing/opening means 3350, thesecond opening 3362 is opened to allow movement of the cosmetic fluidthrough the second fluid communication channel 3132 a.

The closing/opening means 3350 is in contact with the distal end of theclosing/opening means stopper 3340 and is configured in a sphericalshape. By an external force generated by the volume change of thecosmetic fluid via the up and down movement of the actuation mechanism3140, the second opening 3362 of the cover 3360 may be reversibly openedand closed. The hollow cylindrical tube 3330 surrounds the communicationchannel 3132 a such that the inner diameter t1 of the hollow cylindricaltube 3330 is larger than the inner diameter of the second fluidcommunication channel 3132 a. Thus, the closing/opening means stopper3340 disposed in the hollow cylindrical tube 3330 mat be retained withinthe hollow cylindrical tube 3330 without departing therefrom into thesecond fluid communication channel 3132 a.

Alternatively, the closing/opening means stopper 3340 may furtherinclude a spring formed inside the cover 3360. The spring may bedisposed within the cover 3360 to position the closing/opening means3350 toward the distal end of the closing/opening means stopper 3340.The spring may elastically move left and right by the up and downmovement of the actuation mechanism 3140 to control opening and closingof the second opening 3362 by the closing/opening means 3350.

A groove or protrusion 3331 is formed in or on the outer ace of thehollow cylindrical tube 3330, while a protrusion or groove 3363, whichis engaged with the groove or protrusion 3331, is formed on or in theinner face of the cover 3360, such that the cover 3360 may be fixed inclose contact with the hollow cylindrical tube 3330. The inner space ofthe hollow cylindrical tube 3330 is in fluid communication with thesecond fluid communication channel 3132 a and in fluid communicationwith the second opening 3362 of the cover 3360 to provide cosmeticfluid-communication between the interior space S of the elongate mainbody 3110 and the fluid communication chamber 3131.

For example, the groove or protrusion 3331 and the protrusion or groove3362 may be fastened together by fitting. Alternatively, the fasteningmethod between the groove or protrusion 3331 and the protrusion orgroove 3362 may be replaced by a screw connection between the screwthread and the screw groove. The coupling method between the groove orprotrusion 3331 and the protrusion or groove 3362 may be variouslymodified or replaced as long as the cover 3360 may be closely fixed tothe hollow cylindrical tube 3330 via such coupling method. The presentdisclosure is not limited to the coupling method between the groove orprotrusion 3331 and the protrusion or groove 3362.

When the external force applied to the actuation mechanism 3140 isreleased, the cosmetic fluid having the same volume as the cosmeticfluid of the first volume of the cosmetic fluid stored in the firststorage sub-space s1 passes through the hollow cylindrical tube 3330 andthe second fluid communication channel 3132 a into thefluid-communication chamber 3131, and, thus, the volume of the firstcosmetic-fluid storage sub-space s1 is reduced by the first volume, andthe volume of the second inner sub-space s2 is increased by the volumeof the first volume.

In order for the cosmetic fluid to move from the first inner sub-spaceS1 of the elongate fluid-supply tube 3150 into the fluid communicationchamber 3131 through the fluid-inlet hole 132 a, only the cosmetic-fluidshould be present in the first inner sub-space S1. Therefore, since thefluid of the first volume has been emitted from the first innersub-space S1, the volume of the first inner sub-space S1 must bevariable to remove air creation therein.

To this end, the cosmetic-fluid dispenser 3100 according to the presentdisclosure comprises the compressing member 3190. The compressing member3190 may define the first inner sub-space S1 and prevent the inflow ofair into the sub-space s1.

The compressing member 3190 may be displaced in a sliding manner alongan inner face of the elongate fluid-supply tube 3150. This displacementis based on the volume change of the sub-space s1 due to the outflow ofthe cosmetic fluid from the first inner sub-space S1. Specifically,since there is only the cosmetic-fluid in the first inner sub-space S1,the empty space in the sub-space s1, which occurs in response to theoutflow of the cosmetic-fluid, must be filled with air or an externalsubstance. In this regard, the compressing member 3190 prevents inflowof the external air or material into the first inner sub-space S1, sothat the inner volume of the first inner sub-space S1 is reduced toremove the empty space, thereby to enable the cosmetic-fluid outflowtherefrom. The compressing member 3190 divides the inner space of theelongate fluid-supply tube 3150 into the first inner sub-space S1 andthe second inner sub-space S2. The first inner sub-space S1 is formedbetween the compressing member 3190 and the fluid-communication chamber3131, and the cosmetic-fluid is stored in the first inner sub-space.When the external force applied to the actuation mechanism 3140 isreleased, the first volume of cosmetic-fluid from the cosmetic-fluidstored in the first inner sub-space S1 passes through the secondfluid-communication channel 3132 a into the chamber 3131. At the sametime, the compressing member 3190 is displaced along the inner face ofthe elongate fluid-supply tube 3150 such that the volume of the firstinner sub-space is reduced by the first volume.

The second inner sub-space S2 is formed between the compressing member3190 and the sealing cap 3153 defining the rear end of the elongatefluid-supply tube 3150. When the volume of the first inner sub-space S1is reduced by the first volume, the volume of the second inner sub-spaceS2 is expanded by the first volume. In this connection, the sealing cap3153 has an air-communication hole 3152 defined therein, which allowsair-communication between the second inner sub-space S2 and an exteriorspace of the cosmetic-fluid dispenser 3100. The air-communication hole3152 serves as a channel through which, when the second inner sub-spaceS2 is expanded by the first volume, the outside air of the same volumeas the first volume flows into the second inner sub-space S2.

The elongate fluid-supply tube 3150 is detachably inserted into theinner space of the elongate main body 3110. The front end of theelongate fluid-supply tube 3150 is open and the rear end is closed bythe sealing cap 3153. The elongate fluid-supply tube 3150 is cylindricaland hollow. The interior space of the elongate fluid-supply tube 3150 isdivided into the first inner sub-space s1 and the second inner sub-spaces2 by the compressing member 3190.

The compressing member 3190 may be in intimate contact with the innerface of the elongate fluid-supply tube 3150. The compressing member 3190may include a compressing outer ring 3191 in intimate contact with theinner surface of the elongate fluid-supply tube 3150 and a fluidcompressing portion 3192 occupying a circular cross-sectional spacewithin the compressing outer ring 3191. The fluid compressing portion3192 is vertically coupled to the compressing outer ring 3191. Thecentral portion of the fluid compressing portion 3192 is aligned withthe air-communication hole 3152 and has a convexly stepped portiontoward the air-communication hole 3152. A cavity 3193 is defined in thestepped portion, and the hollow cylindrical portion 3330 may be receivedin the cavity 3193.

In order that the cosmetic fluid in the cosmetic elongate fluid-supplytube 3150 flows out, the compressing member 3190 progressively movestoward the front end of the elongate main body 3110 along the innersurface of the cosmetic elongate fluid-supply tube 3150. At this time,due to the configuration that the compressing member 3190 includes thecavity 3193, the compressing member 3160 may be configured to approachthe chamber body portion 3130 side of the elongate main body 3110without physical limitation. Accordingly, the cosmetic fluid containedin the first cosmetic-fluid storage sub-space s1 may be discharged tothe outside without remaining in the elongate main body 3110,specifically, the cosmetic elongate fluid-supply tube 3150.

An O-ring 3154 is provided on the outer surface of the front end of thecosmetic elongate fluid-supply tube 3150, while an annular groove 3119into which the O-ring 3154 is seated is defined in the inner face of theelongate main body 3110. In this way, the cosmetic elongate fluid-supplytube 3150 and the elongate main body 3110 may be tightly coupled to eachother. When the cosmetic elongate fluid-supply tube 3150 is insertedinto the elongate main body 3110, the O-ring 3153 may be fitted andfixedly secured in the groove 3119 defined in the elongate main body3110.

The rear end of the cosmetic elongate fluid-supply tube 3150 may beinserted into the elongate main body 3110. The rear end of the cosmeticelongate fluid-supply tube 3150 may define a distal end portion of theelongate main body 3110. For example, the rear end portion of thecosmetic elongate fluid-supply tube 3150 is formed in a stepped shapeand is fixedly inserted into the elongate main body 3110. The cosmeticelongate fluid-supply tube 3150 completely inserted into the elongatemain body 3110 may be integral with the elongate main body 3110 via therear sealing cap 3153 while the cosmetic elongate fluid-supply tube 3150may not protrude outside the elongate main body 3110.

The distal cosmetic-fluid outlet structure 3171 has a distal end portionhaving an fluid discharging hole 3171 a formed in its downstream regionfor discharging the cosmetic-fluid. The fluid discharging hole 3171 a isout of the inner cap 3120. The distal cosmetic-fluid outlet structure3171 has an inserted portion 1171 b formed in the upstream regionthereof and inserted into a distal end of the first fluid communicationchannel 3112.

When the proximal portion 3171 b is inserted into the inner cap tocommunicate with the distal end of the first fluid communication channel3112, a spacing Q is defined between the outer surface of the proximalportion 3171 b and the inner surface of the first fluid communicationchannel 3112. Further, the proximal portion 3171 b has a firstfluid-communication space V1 defined therein in communication with thefluid discharging hole 3171 a. More specifically, the first insertedportion 3171 c of the inserted portion may have the firstfluid-communication space V1 defined therein in communication with thefluid discharging hole 3171 a.

The first inserted portion 3171 c of the inserted portion has a firsthole H1 defined therein for realizing fluid communication between thefirst fluid-communication space V1 and the spacing Q. The secondinserted portion 3171 d thereof has a second fluid-communication spaceV2 defined therein in communication with the fluid-communication chamber3131, and has a second hole H2 defined therein to realizefluid-communication between the second fluid-communication space V2 andthe spacing Q. A closing/opening means 3173 is configured to surroundthe second hole H2 to open or close the second hole H2 to control themovement of the cosmetic fluid through the second hole H2.

When the external force is applied to the actuation mechanism 3140, theclosing/opening means 3173 is elastically deformed or displaced by thepressure resulting from the cosmetic fluid moving from the chamber tothe distal end of the first fluid communication channel 3112. As aresult, the second hole H2 is opened. When the pressure is weakened, theclosing/opening means 3173 may be restored or returned by the restoringforce due to the elastic deformation or displacement to close the secondhole H2.

FIG. 43 is a perspective view of an actuation mechanism and firstelastic member of FIG. 42. FIG. 44 is a perspective view of an actuationmechanism and first elastic member according to another embodiment ofthe present disclosure.

Referring to FIG. 43, the actuation mechanism 3140 includes thefollowing components: a hollow piston portion 3141 being formed in acylindrical shape to be inserted into the fluid-communication chamber3131, wherein the hollow piston portion 3141 has a bottom inlet hole3141 a defined in a bottom portion thereof, and the hollow pistonportion 3141 has a fluid receiving space defined therein; a head supportportion 3142 extending upward from the hollow piston portion 3141 andhaving an outer diameter smaller than an outer diameter of the hollowpiston portion 3141 and being formed in a cylindrical shape and having ahole 3142 a defined in a top portion thereof; a head including a pressedportion to which an external force is applied and which is exposed outof the fluid-communication chamber 3131 and including an inserted rib3146 which extends from a bottom of the pressed portion 3145 and isinserted into the hole 3142 a; and first and second sealing rings 3148and 3149 spaced apart from each other in a vertical direction anddisposed around an outer surface of the hollow piston portion 3141.

The hollow piston portion 3141 has first and second lateralthrough-holes 3144 defined therein which penetrate through two oppositelateral points of the hollow piston portion 3141 respectively andcommunicate with the bottom receiving hole 3141 a and the innerreceiving space of the hollow piston portion 3141.

The first sealing ring 3148 surrounds the lower portion of the outerperiphery of the hollow piston portion 3141, while the second sealingring 3149 surrounds the upper portion of the outer periphery of thehollow piston portion 3141. All of the first and second lateralthrough-holes 3144 are defined between the first and second sealingrings 3148, 3149 in a vertical direction. An imaginary line between thefirst and second lateral through-holes 3144 meets the center of thecircular cross section of the hollow piston portion 314.

A first fluid communication channel 3112 extends in the second directionperpendicular to the first direction at one side of thefluid-communication chamber 3131 and in the chamber body portion 3130.The first fluid communication channel 3112 communicates with one of thefirst and second lateral through-holes 3144 and the distalcosmetic-fluid outlet structure 3171 that externally flows the cosmeticfluid.

A second fluid communication channel 3132 a extends in the seconddirection in the chamber body portion and at the other side of thefluid-communication chamber 3131. The second fluid communication channel3132 a communicates with the other of the first and second lateralthrough-holes 3144 and the cosmetic-fluid storage space of the elongatemain body 3110.

When an external force is applied to the actuation mechanism 3140, thefirst elastic member 3147 is compressed such that at least a portion ofthe pressed portion 3145 is inserted into the fluid-communicationchamber 3131 and the cosmetic fluid contained within the hollow pistonportion 3141 flow through one of the first and second lateralthrough-holes 3144 and then through the first fluid communicationchannel 3112. At this time, the first fluid communication channel 3112and the second fluid communication channel 3132 a are positioned betweenthe first and the second sealing rings 3148 and 3149 in terms of theheight level.

When the external force applied to the actuation mechanism 3140 isreleased, the first elastic member 3147 is restored or returned, thepressed portion 3145 protrudes outside the fluid-communication chamber3131, and, cosmetic fluid may flow into the hollow piston portion 3141from the first storage sub-space s1 of the fluid supply tube 3150through the second fluid communication channel 3132 a.

When the actuation mechanism 3140 is inserted into or withdrawn from thefluid-communication chamber 3131, the first sealing ring 3148 may slidealong the inner circumferential surface of the fluid-communicationchamber 3131. In addition, when the actuation mechanism 3140 is insertedinto or withdrawn from the fluid-communication chamber 3131, the secondsealing ring 3149 may slide along the inner circumferential surface ofthe fluid-communication chamber 3131. In particular, when the actuationmechanism 3140 is withdrawn from the fluid-communication chamber 3131,the second sealing ring 3149 prevents the cosmetic fluid contained inthe fluid-communication chamber 3131 from flowing out of thefluid-communication chamber 3131. The first and second sealing rings3148 and 3149 are spaced apart from each other in the verticaldirection, thereby preventing air from flowing into thefluid-communication chamber 3131.

The pair of actuation mechanisms 3140 may be configured in anotherembodiment. In this case, the pair of actuation mechanisms 3140 mayinclude an upper actuation mechanism and a lower actuation mechanism.Liquid may be present between the upper and lower actuation mechanisms.In this case, the sealing rings associated with the upper actuationmechanism may be the first sealing ring 3148 and the second sealing ring3149. Meanwhile, the lower actuation mechanism may include the thirdsealing ring and the fourth sealing ring. In this regard, when the loweractuation mechanism 3140 is inserted into or withdrawn from thefluid-communication chamber 3131, the third sealing ring may slide alongthe inner circumferential surface of the fluid-communication chamber3131. In addition, when the lower actuation mechanism 3140 is insertedinto or withdrawn from the fluid-communication chamber 3131, the fourthsealing ring may slide along the inner circumferential surface of thefluid-communication chamber 3131. In particular, when the loweractuation mechanism 3140 is withdrawn from the fluid-communicationchamber 3131, the fourth sealing ring prevents the cosmetic fluidcontained in the fluid-communication chamber 3131 from flowing out ofthe fluid-communication chamber 3131. The third and fourth sealing ringsare spaced apart from each other in the vertical direction, therebypreventing air from flowing into the fluid-communication chamber 3131.

In another embodiment, the first sealing ring 3148 may be configured tobe adjacent to the top side of the actuation mechanism 3140, while thesecond sealing ring 3149 may be configured to be adjacent to the bottomside of the actuation mechanism 3140. The first and second sealing rings3148 and 3149 may be seated in first annular groove and the secondannular groove which may be defined around the actuation mechanism 3140at the height levels corresponding to the height levels where the firstand the second sealing rings 3148 and 3149 are disposed respectively.The first annular groove and the second annular groove mayshape-correspond to the first and the second sealing rings 3148 and 3149respectively.

While the first and second sealing rings 3148 and 3149 are in closecontact with the inner wall of the fluid-communication chamber 3131, thefirst and second sealing rings 3148 and 3149 may move along the innerwall of the fluid-communication chamber 3131. Each of the first andsecond sealing rings 3148, 3149 may be embodied, for example, as aresilient O-ring or a rubber packing. The present disclosure is notlimited thereto. The first and second sealing rings 3148 and 3149 mayslide along the inner wall of the fluid-communication chamber 3131 whilebearing against and pressing the inner wall of the fluid-communicationchamber 3131.

In this case, the space below the second sealing ring 3149 of theactuation mechanism 3140 inside the fluid-communication chamber 3131 issealed by the second sealing ring 3149. Thereby, the pressure of thecosmetic fluid flowing from the fluid-communication chamber 3131 throughthe first fluid communication channel 3112 may be increased.

The second sealing ring 3149 prevents the loss of the cosmetic fluidthat, otherwise may flow through the fine flow gaps defined in the innerwall of the fluid-communication chamber 3131. Thereby, the outflow ofthe cosmetic fluid from the fluid-communication chamber 3131 through thefirst fluid communication channel 3112 may reliably realized. Comparedwith the absence of the second sealing ring 3147, the cosmetic fluidout-flow can be realized with stronger pressure via the second sealingring 3149.

When an external force is applied to the actuation mechanism 3140, thepressure of the cosmetic fluid in the fluid-communication chamber 3131rises, thereby limiting the amount of cosmetic fluid flowing through thesecond fluid communication channel 3132 a into the fluid-communicationchamber 3131. At the same time, the cosmetic fluid is discharged throughthe first fluid communication channel 3112. On the contrary, when anexternal force applied to the actuation mechanism 3140 is released, thepressure of the cosmetic fluid in the fluid-communication chamber 3131decreases, thereby preventing the discharge of the fluid through thefirst fluid communication channel 3112, and at the same time, the fluidmay flow from the fluid supply tube 3150 through the second fluidcommunication channel 3132 a into the fluid-communication chamber 3131.Thereby, the cosmetic fluid contained in the fluid-communication chamber3131 may be maintained at a certain amount.

The first elastic member 3147 is configured to have a smaller diameterthan the diameter of the bottom inlet hole 3141 a so that at least aportion of the first elastic member 3147 can be inserted through thebottom inlet hole 3141 a into the hollow piston portion 3141. Theremaining portion of the first elastic member 3147 may be positionedbelow the actuation mechanism 3140 and may provide an elastic force tothe actuation mechanism 3140. The actuation mechanism 3140 may be spacedfrom the inner wall of the fluid-communication chamber via the first andsecond sealing rings 3148, 3149.

In an alternative, with reference to FIG. 44, the actuation mechanism inthe region between the first and the second sealing rings 3148 and 3149may be concaved inwards. In the actuation mechanism according to thisembodiment, since the side face 3141′ between the first and the secondsealing rings 3148, 3149 is configured to be concave inward, the spacebetween the inner wall of the fluid-communication chamber and the outerwall of the actuation mechanism may be enlarged between the first andsecond sealing rings 3148 and 3149. Thus, the cosmetic fluid can easilyflow into the fluid-communication chamber 3131 from the fluid supplytube through one of the first and second lateral through-holes 3144located between the first and second sealing rings 3148, 3149 withoutany restriction about the viscosity of the cosmetic fluid. Further, thecosmetic fluid can easily be discharged into the first fluidcommunication channel 3113 through the other of the first and secondlateral through-holes 3144 between the first and second sealing rings3148, 3149 without any restriction about the viscosity of the cosmeticfluid.

FIG. 45 is a view schematically showing the actuation mechanism to whichan external force is applied according to another embodiment of thepresent disclosure. FIG. 46 is a schematic representation of theexternal force applied to the actuation mechanism in FIG. 45. FIG. 47 isa perspective view of the actuation mechanism and first elastic memberof FIG. 46. FIG. 48 is a perspective view of the actuation mechanism andfirst elastic member according to still another embodiment of thepresent disclosure.

The actuation mechanism 3140 can reversibly move by elastic deformationof the first elastic member 3147. When an external force is applied tothe actuation mechanism 3140, a first volume of cosmetic fluid containedin the fluid-communication chamber 3131 flows out through the firstfluid communication channel 3112 to the distal cosmetic-fluid outletstructure 3170. When the external force applied to the actuationmechanism 3140 is released,

A volume of cosmetic fluid corresponding to the cosmetic fluid of thefirst volume exiting the distal cosmetic-fluid outlet structure 3171flows from the cosmetic-fluid storage space of the fluid supply tube3150, through the second fluid communication channel 3132 a, and isintroduced into the communication chamber 3131.

When an external force is applied to the actuation mechanism 3140, theactuation mechanism 3140 is inserted into the fluid-communicationchamber 3131 so that a first volume of the cosmetic fluid contained inthe fluid-communication chamber 3131 passes through the first fluidcommunication channel 3112 and is discharged to the outside through thedistal cosmetic-fluid outlet structure 3170. When the external forceapplied to the actuation mechanism 3140 is released, the actuationmechanism 3140 is separated from the bottom of the fluid-communicationchamber 3131 by the restoring force of the first elastic member 3147 ofthe actuation mechanism 3140, the space for accommodating the cosmeticfluid in the fluid-communication chamber 3131 increases. Thus, the fluidspace within the fluid-communication chamber 3131 may be filled with acosmetic fluid at an amount that reversibly changes due to movement ofthe actuation mechanism 3140 within the fluid-communication chamber3131. For example, for this reversible change, in the actuationmechanism 3140, the bottom inlet hole 3141 a and the first and secondlateral through-holes 3144 can communicate with each other.

A cosmetic fluid of the same volume as the first volume cosmetic fluidexiting the distal cosmetic-fluid outlet structure 3171 is transferredfrom the cosmetic-fluid storage space S of the elongate main body 3110through the second fluid communication channel 3132 a to thefluid-communication can be introduced into the chamber 3131.

The space in the fluid-communication chamber 3131 defined in the chamberbody portion 3130 is reduced by the actuation mechanism 3140 that hasdownwardly moved within the fluid-communication chamber 3131 by anexternal force applied to the actuation mechanism 3140. Thereby, anamount corresponding to the first volume of the cosmetic fluid receivedin the fluid-communication chamber 3131 flows out through the firstfluid communication channel 3112 to the distal cosmetic-fluid outletstructure 3171. In addition, when the external force applied to theactuation mechanism 3140 is released, the actuation mechanism 3140 ismoved out of the fluid-communication chamber 3131 so that thefluid-communication chamber 3131 in the chamber body portion 3130 isexpanded by the first volume. At this time, the cosmetic fluid stored inthe elongate main body 3110 flows into the fluid-communication chamber3131 through the second opening 3362 of the cover 3360 to fill the firstvolume of the expanded fluid-communication chamber 3131.

The distal cosmetic-fluid outlet structure 3171 includes a fluiddischarging hole 3171 a protruding outward from the inner cap 3120 anddischarging the cosmetic fluid to the outside, and an inserted portion3171 b disposed inside the inner cap 3120 and inserted and coupled tothe inside of the distal end of the first fluid communication channel3112.

In this connection, the cross section of the fluid discharging hole 3171a may be formed in an elliptic shape so that the fluid discharging hole3171 a can be closely adhered to the skin. According to anotherembodiment of the present disclosure, a fluid discharging hole may becombined with a brush (not shown) for makeup. As a result, the cosmeticfluid drained through the fluid discharging hole may be absorbed via theuser's skin through the soft brush. At this time, the user may feel thetouch of a soft brush and use cosmetic fluid for skin beauty.

When the proximal portion 3171 b is inserted into the inner cap tocommunicate with the distal end of the first fluid communication channel3112, a spacing Q is defined between the outer surface of the proximalportion 3171 b and the inner surface of the first fluid communicationchannel 3112. Further, the proximal portion 3171 b has a firstfluid-communication space V1 defined therein in communication with thefluid discharging hole 3171 a. More specifically, the first insertedportion 3171 c of the inserted portion may have the firstfluid-communication space V1 defined therein in communication with thefluid discharging hole 3171 a.

The first inserted portion 3171 c of the inserted portion has a firsthole H1 defined therein for realizing fluid communication between thefirst fluid-communication space V1 and the spacing Q. The secondinserted portion 3171 d thereof has a second fluid-communication spaceV2 defined therein in communication with the fluid-communication chamber3131, and has a second hole H2 defined therein to realizefluid-communication between the second fluid-communication space V2 andthe spacing Q. A closing/opening means 3173 is configured to surroundthe second hole H2 to open or close the second hole H2 to control themovement of the cosmetic fluid through the second hole H2.

When the external force is applied to the actuation mechanism 3140, theclosing/opening means 3173 is elastically deformed or displaced by thepressure resulting from the cosmetic fluid moving from the chamber tothe distal end of the first fluid communication channel 3112. As aresult, the second hole H2 is opened. When the pressure is weakened, theclosing/opening means 3173 may be restored or returned by the restoringforce due to the elastic deformation or displacement to close the secondhole H2.

The closing/opening means 3173 is implemented as a kind of thin rubberfilm and extends along and on the annular outer circumferential surfaceof the second inserted portion 3171 d and is capable of opening andclosing the second hole H2 by elastic deformation or displacementthereof.

The cosmetic-fluid storage space of the elongate fluid supply tube 3150includes a reversibly volumetric first cosmetic-fluid storage sub-spaceS1 and a second cosmetic-fluid storage sub-space S2. The firstcosmetic-fluid storage sub-space s1 is a space from which the cosmeticfluid is delivered to the fluid-communication chamber 3131. The secondcosmetic-fluid storage sub-space s2 may receive air from the outside.

In an alternative, with reference to FIG. 48, the actuation mechanism inthe region between the first and the second sealing rings 3148 and 3149may be concaved inwards. In the actuation mechanism according to thisembodiment, since the side face 3141′ between the first and the secondsealing rings 3148, 3149 is configured to be concave inward, the spacebetween the inner wall of the fluid-communication chamber and the outerwall of the actuation mechanism may be enlarged between the first andsecond sealing rings 3148 and 3149. Thus, the cosmetic fluid can easilyflow into the fluid-communication chamber 3131 from the fluid supplytube through one of the first and second lateral through-holes 3144located between the first and second sealing rings 3148, 3149 withoutany restriction about the viscosity of the cosmetic fluid. Further, thecosmetic fluid can easily be discharged into the first fluidcommunication channel 3113 through the other of the first and secondlateral through-holes 3144 between the first and second sealing rings3148, 3149 without any restriction about the viscosity of the cosmeticfluid.

In the following, with reference to FIGS. 49 to 52, another embodimentof the present disclosure will be described. Except for the following,details similar to those described in the embodiment described in FIGS.36 to 48 are omitted.

FIG. 49 is a cross-sectional view of the front portion of the elongatemain body according to another embodiment of the present disclosure.FIG. 50 is a schematic representation of the external force applied tothe actuation mechanism in FIG. 49. FIG. 51 is a cross-sectional view ofthe front portion of the elongate main body according to still furtheranother embodiment of the present disclosure. FIG. 52 is a schematicrepresentation of the external force applied to the actuation mechanismin FIG. 51.

With reference to FIG. 49 to FIG. 52, the cosmetic-fluid dispenseraccording to this embodiment includes a fluid-outlet adjustment ball3475 disposed in a distal cosmetic-fluid outlet structure 3471 tocontrol the amount of cosmetic fluid exiting through the first fluidcommunication channel 3112.

The distal cosmetic-fluid outlet structure 3171 includes the fluiddischarging hole 3171 a protruding outside the inner cap 3120 anddischarging the cosmetic fluid to the outside, and an inserted portiondisposed inside the inner cap 3120 and inserted into the distal end ofthe first fluid communication channel 3112. The inner diameter of thedistal end of the first fluid communication channel 3112 may be greaterthan the inner diameter of the proximal end portion of the first fluidcommunication channel 3112 facing the actuation mechanism 3140.

The fluid-outlet adjustment ball 3475 is disposed toward the distal endside of the first fluid communication channel 3112 inside the proximalend of the proximal portion 3171 b. The fluid-outlet adjustment ball3475 has a diameter that is greater than the inner diameter of the rearportion of the first fluid communication channel 3112. In the downstreamof the fluid-outlet adjustment ball 3475, the second elastic member 3473is disposed.

When the external force is applied to the actuation mechanism 3140, thecosmetic fluid provided in the cosmetic-fluid storage space movesthrough the first fluid communication channel 3112 to press thefluid-outlet adjustment ball 3475, thereby compressing the elasticmember 3473, the cosmetic fluid is discharged through the distal end ofthe first fluid communication channel 3112 and then through the distalcosmetic-fluid outlet structure 3171. When the cosmetic fluiddepressurizes the fluid-outlet adjustment ball 3475, due to therestoring force of the second elastic member 3473, the fluid-outletadjustment ball 3475 closes the rear end of the first fluidcommunication channel 3112.

In the cosmetic-fluid dispenser according to the present embodiment, thefluid-outlet adjustment ball 3475 is disposed in the distalcosmetic-fluid outlet structure 3471 so that the amount of cosmeticfluid that is the cosmetic that is discharged through the first fluidcommunication channel 3112 is controlled. When an external force isapplied to the actuation mechanism 3140, the fluid-outlet adjustmentball 3475, due to the pressure by the cosmetic fluid flowing toward thedistal end of the first fluid communication channel 3112, is moved inthe direction toward the fluid outlet structure 3171, that is, in thethird direction. When the pressure is weakened, the fluid-outletadjustment ball 3475 is moved by the second elastic member 3473 in afourth direction opposite to the third direction so that the opening3431 b of the distal end of the first fluid communication channel 3112may be closed.

For example, the cosmetic-fluid dispenser according to the presentembodiment includes, the spherical first fluid-outlet adjustment ball3475 and the spherical second closing/opening means 3350 around theactuation mechanism 3140, that it, in the distal cosmetic-fluid outletstructure 3171 for discharging the cosmetic fluid to the outside, andthe hollow cylindrical tube 3330 receiving the cosmetic fluid from thefirst cosmetic-fluid storage space S1 of the fluid supply tube 3150.

Below the actuation mechanism 3140, the first elastic member 3147, 3147a may be constructed. The first elastic members 3147 and 3147 a mayextend upward from the bottom of the fluid communication chamber 3131and have a smaller diameter than the bottom inlet hole 3141 a. This isthe case in FIG. 49 and FIG. 50. Alternatively, the fluid communicationchamber 3131 may have a larger diameter than the bottom inlet hole 3141a. This is the case in FIG. 51 and FIG. 52.

As in FIG. 49 and FIG. 50, at least a portion of the first elasticmember 3147 may be inserted into the bottom inlet hole of the actuationmechanism 3140, if the diameter of the first elastic member 3147 issmall, As in FIG. 51 and FIG. 52, the first elastic member 3147 a may beblocked by and contact the bottom surface of the actuation mechanism3140 when the diameter of the first elastic member 3147 a is large.

As shown in FIG. 49 and FIG. 51, when the external force is releasedsuch that the pressed portion 3113 of the actuation mechanism 3140 movesupward, the second elastic member 3473 is moved in the fourth directionand is restored. Then, the fluid-outlet adjustment ball 3475 closes thedistal cosmetic-fluid outlet structure 3171. At this time, theclosing/opening means stopper 3340 is elastically biased in the thirddirection to move the closing/opening switcher 3350 away from the cover3360 so that the cosmetic fluid provided within the first cosmetic-fluidstorage space S1 of the elongate main body, that it, the fluid supplytube 3150 may be introduced into the fluid communication chamber 3131.

As shown in FIG. 50 and FIG. 52, when an external force is applied tothe pressed portion and the actuation mechanism 3140 is presseddownward, the second elastic member 3473 in a response to receiving theexternal force is urged in a direction toward the outside of the distalcosmetic-fluid outlet structure 3171, that is, in the third direction,the first fluid communication channel 3112 may be opened via thefluid-outlet adjustment ball 3475. Thus, the cosmetic fluid and air aredischarged to the outside through the distal cosmetic-fluid outletstructure 3471. At this time, the closing/opening means stopper 3340presses the closing/opening means 3350 in the fourth direction such thatthe inflow of the cosmetic fluid from the fluid storage space in theelongate main body into the second fluid communication channel 3132 a isrestricted.

FIG. 53 is a perspective view of the cosmetic-fluid dispenser accordingto an embodiment of the present disclosure. FIG. 54 shows a state inwhich a cap is separated from an elongate main body in FIG. 53. FIG. 55is a cross-sectional view of FIG. 54. FIG. 56 is an exploded perspectiveview of FIG. 53. FIG. 57 is a section view of the front portion of theelongate main body in the FIG. 55. FIG. 58 is a view schematicallyshowing the actuation mechanism to which an external force is applied inthe FIG. 57

The cosmetic-fluid dispenser 4100 according to one embodiment of thepresent disclosure includes an actuation mechanism 4140 configured toallow selective dispensing of a cosmetic-fluid; an elongate main body4110 having opposite first and second end portions; wherein the elongatemain body has an inner space S therein defined to contain therein acosmetic-fluid; a fluid-communication chamber 4131 defined in the firstportion of the elongate main body and extending in a vertical direction,wherein the actuation mechanism 4140 selectively passes through thefluid-communication chamber 4131, wherein the actuation mechanism 4140has a top portion exposed out of the fluid-communication chamber 4131and has an open bottom portion 4141 a; a vertical elastic member 4147disposed along and around the upper portion of the actuation mechanism4140; a chamber body portion 4130 having the fluid-communication chamber4131 defined therein, wherein the chamber body portion 4130 define aportion of the main body, and has an second fluid communication channel4132 a defined therein to allow fluid-communication between the innerspace S and the fluid-communication chamber 4131; a distalcosmetic-fluid outlet structure 4171 fluid-communicating with thefluid-communication chamber 130 via a an first fluid communicationchannel 4112 defined in the chamber body portion 4130 and opposite tothe second fluid communication channel 4132 a; wherein the chamber bodyportion 4130 is a portion of the elongate main body 4110.

In addition, a top of the chamber body portion 4130 has a first concavedface portion 4131, and wherein an outer face of the top portion of theactuation mechanism is complementary to the first concaved face in ashape. The fluid-communication chamber 130 is configured to cooperatewith the actuation mechanism 4140 to dispense a cosmetic-fluid out ofthe elongate main body.

The cosmetic-fluid dispenser 4100 includes an inner cap 4120 having asecond concaved face portion 4121 a corresponding to the first concavedface portion 4131 and being engaged with the end of the first portion4115, which is the tip of the elongate main body 4110; and an outer cap4180 having a receiving space 4181 defined therein for receiving thedistal cosmetic-fluid outlet structure 4171 and being engaged with theinner cap 4120.

The inner cap 4120 and the outer cap 4180 are sequentially connected tothe elongate main body 4110. At least a portion of the inner cap 4120faces the outermost surfaces of the outer cap 4180 and the elongate mainbody 4110. The second concaved face portion 4121 defines a space withthe outer cap 4180.

In this connection, the cosmetic-fluid stored in a storage space of theelongate main body 4110 has a sufficient viscosity to be dischargedthrough the distal cosmetic-fluid outlet structure 4171. Thecosmetic-fluid is not particularly limited.

When the outer cap 4180 is separated from the elongate main body 4110,the distal cosmetic-fluid outlet structure 4171 is exposed. Conversely,when the outer cap 4180 is combined with the elongate main body 4110,the distal cosmetic-fluid outlet structure 4171 is concealed within thecap 180. After the outer cap 4180 is separated from the elongate mainbody 4110, when an external force is applied to the actuation mechanism4140, a certain amount of the cosmetic fluid flows out of the elongatemain body 4110 through the distal cosmetic-fluid outlet structure 4171.The outer cap 4180 may be provided to cover the distal cosmetic-fluidoutlet structure 4171 through which the cosmetic fluid flows. The outercap 4180 may be embodied in various forms. The outer cap 4180 may bemade of the same or different material as the elongate main body 4110.

The elongate main body 4110 has the fluid storage space S definedtherein in which cosmetic fluid is stored, the end of the first portion4115 of the elongate main body 4110 to which the outer cap 4180 isfastened and an end of a second portion opposite the end of the firstportion 4115. The long body extending between the ends of the first andsecond portions may have the storage space S defined therein. Forexample, the elongate main body 4110 may have various shapes such as ahexahedron and a cylindrical shape.

The actuation mechanism 4140 has a form corresponding substantially to afluid-communication chamber 4131 into which the actuation mechanism 4140is inserted. The first elastic member 4147 may be disposed on the bottomsurface of the fluid-communication chamber 4131 below the actuationmechanism 4140. For example, the actuation mechanism 4140 is configuredto be partially exposed to the outside from the fluid-communicationchamber 4131. When the user presses the exposed portion to apply anexternal force, the actuation mechanism 4140 may move up and down in thefluid-communication chamber 4131 via the elastic force of the firstelastic member 4147.

The inner cap 4120 is coupled to the distal end of the elongate mainbody 4110 and has a shape corresponding to the end of the first portion4115 of the elongate main body 4110. The inner cap 4120 is press-fittedwith a ring member 4160 on the distal end of the elongate main body4110. The inner cap 4120 has a shape corresponding to the end of thefirst portion 4115 of the elongate main body 4110. The inner cap 4120 isfastened to the elongate main body 4110 to expose the distalcosmetic-fluid outlet structure 4171. The inner cap 4120 may be fastenedand fixed to the outer cap 4180.

The inner cap 4120 may be configured such different members thereof maybe connected to each other in a stepped manner so that the diameters ofthe inner cap 4120 decrease from one end to the other end. Among thesemembers, the member adjacent to the ring member 4160 has the widestdiameter, while the member inserted into the outer cap 4180 may have anarrowest diameter.

The inner cap 4120 may include a flange portion 4121 having an outerperiphery corresponding to the outer periphery of the elongate main body4110, a middle portion 4122 connected to the flange portion 4121 andhaving a smaller diameter than the flange portion 4121, and a distalportion 4123 connected to the middle portion 4122 and having a smallerdiameter than the middle portion 4122. The distal portion 4123 has ahole through which the distal cosmetic-fluid outlet structure 4171passes. The distal portion 4123 may be made of two sub-portions withdifferent diameters such that the sub-portion defining the hole throughwhich the distal cosmetic-fluid outlet structure 4171 passes has asmaller diameter.

A hole through which the actuation mechanism 4140 passes is formed inthe flange portion 4121 of the inner cap 4120. A portion defining thehole therein through which the actuation mechanism 4140 protrudes outmay define the second concaved face portion 4121 a. Because the secondconcaved face portion 4121 a is more concave, a person applying anexternal force to the actuation mechanism 4140 can easily press theactuation mechanism 4140. For example, when the actuation mechanism 4140is pressed using a human finger, the second concaved face portion 4121 ais provided in a shape corresponding to a human finger. There are nospecial restrictions on its shape as long as the actuation mechanism4140 is easily pressurizable.

In other words, the cosmetic-fluid dispenser 4100 according to thepresent embodiment is characterized in that the elongate main body 4110as a housing receiving the actuation mechanism 4140 and the inner cap4120 have the first and second concaved face portions 4131 and 4121 arespectively. Thus, a space may be reserved for pressurizing theactuation mechanism 4140. Thus, when the actuation mechanism 4140 isexposed out of the fluid-communication chamber 4131, the actuationmechanism 4140 may be prevented from protruding outwardly than theoutermost surface of the elongate main body 4110 and the outer cap 4180.

As described above, in the cosmetic-fluid dispenser 4100 according tothe present embodiment, the first and second concaved face portions 4131and 4121 a may be provided in the section in which the actuationmechanism 4140 to which an external force is applied is disposed.Accordingly, it is possible to prevent unnecessary protruding portionsfrom protruding while suppressing increasing the overall volume of thecosmetic-fluid dispenser 4100. Accordingly, even in the cosmetic-fluiddispenser 4100 having a narrow width, the cosmetic liquid contained inthe cosmetic-fluid dispenser 4100 may be easily discharged in acontrolled amount.

The outer cap 4180 has a receiving space 4181 for receiving the distalcosmetic-fluid outlet structure 4171, and may engage with the inner cap4120. A groove 4182 to be engaged with a protrusion on the inner cap4120 may be provided in an inner face of the receiving space 4181. Theouter circumference of the outer cap 4180 may correspond to the outercircumference of the body 4110 in a shape. For example, when the outercircumference of the body 4110 is cylindrical, the outer circumferenceof the outer cap 4180 may be cylindrical. If the body 4110 is ahexahedron, the outer cap 4180 may be a hexahedron.

An engaging protrusion 4124 is formed on the outer face of the middleportion 4122 of the inner cap 4120. The engaging protrusion 4124 isinserted into the engaging groove 4182 of the outer cap 4180 so that theouter cap 4180 is stably engaged with the body 4110. In this state, theouter cap 4180 can protect the distal cosmetic-fluid outlet structure4171 and suppress contamination of the distal cosmetic-fluid outletstructure 4171.

The middle portion 4122 and the distal portion 4123 of the inner cap4120 are received in the receiving space 4181 of the outer cap 4180. Theengaging protrusion 4124 provided on the middle portion 4122 may beengaged into the engaged groove 4182 of the outer cap 4180.

In the first portion of the elongate main body 4110, the chamber bodyportion 4130 may be defined. The chamber body portion 4130 has thefluid-communication chamber defined therein. The fluid-communicationchamber is configured to control the cosmetic fluid to be dischargedfrom the elongate main body 4110 to the outside through the distalcosmetic-fluid outlet structure 4171.

The chamber body portion 4130 may have the fluid-communication chamber4131 defined in the chamber body portion 4130 and open at an upper endthereof and extending in a first direction perpendicular to thedirection of the escape of cosmetic fluid from the elongate main body4110. The chamber body portion 4130 has the first fluid communicationchannel 4112 defined therein at one side of the fluid-communicationchamber 4131, wherein the first fluid communication channel 4112communicates with the distal cosmetic-fluid outlet structure 4171 andextends in the second direction perpendicular to the first direction.The chamber body portion 4130 has the second fluid communication channel4132 a defined therein at the other side of the fluid-communicationchamber 4131 and wherein the second fluid communication channel 4132 aextends in a direction parallel to the second direction and communicateswith the fluid storage space of the elongate main body 4110. There is ahollow cylindrical tube 4330 having a wider diameter than the secondfluid communication channel 4132 a. The tube 4330 protrudes from theouter face of the chamber body portion 4130 into the storage space S. Afirst opening 4361 opens at least a portion of the proximal end of thehollow cylindrical tube 4330 and communicates with the second fluidcommunication channel 4132 a. A cover 4360 is fitted into the opendistal end of the hollow cylindrical tube 4330 and has a second opening4362 defined therein communicating with the storage space S.Closing/opening means 4350 is configured to reversibly open and closethe second opening 4362 in the cover 4360. A closing/opening meansstopper 4340 may be disposed within the cover 4360 to control movementof the closing/opening means 435.

For example, the fluid-communication chamber 4131 defined in the chamberbody portion 4130 is configured to control the communicating of thefluid between the distal cosmetic-fluid outlet structure 4171 and thestorage space for storing cosmetic fluid stored within the elongate mainbody 4110. By applying an external force to the actuation mechanism 4140to insert the actuation mechanism 4140 into the fluid-communicationchamber 4131, the amount of cosmetic fluid stored in the elongate mainbody 4110 to flow out through the distal cosmetic-fluid outlet structure4171 may be controlled.

The chamber body portion 4130 has the fluid-communication chamber 4131configured to extend vertically in a direction perpendicular to thelongitudinal direction of the elongate main body 4110. In thisconnection, the first fluid communication channel 4112 communicatingwith the fluid-communication chamber 4131 and communicating with thedistal cosmetic-fluid outlet structure 4171 may extend substantially ata middle level at one side of the fluid-communication chamber 4131. Atthe other side of the fluid-communication chamber 4131, that is, at theopposite side to the first fluid communication channel 4112, the secondfluid communication channel 4132 a communicating with the cosmetic fluidstorage space of the elongate main body 4110 and being in fluidcommunication with the fluid-communication chamber 4131 may extend at asubstantially middle level. Thus, the combination of thefluid-communication chamber 4131 and the fluid outlet and inlet channels4112 and 4132 a may form a substantially cross (+) shape.

The actuation mechanism 4140 may be inserted into thefluid-communication chamber 4131 of the chamber body portion 4130 fromthe top surface of the elongate main body 4110. By the up and downmovement of the actuation mechanism 4140, the cosmetic fluid received inthe fluid-communication chamber 4131 flows into the actuation mechanism4140 through the lower opening of the actuation mechanism 4140, or thefluid may flow from the storage space S in the elongate main body intothe actuation mechanism 4140 through the second fluid communicationchannel 4132 a. Subsequently, the fluid may be discharged to the outsidethrough the first fluid communication channel 4112.

The chamber body portion 4130 includes the hollow cylindrical tube 4330having an inner space having a larger diameter than the second fluidcommunication channel 4132 a; the closing/opening means stopper 4340,which is disposed within the hollow cylindrical tube 4330; theclosing/opening means 4350 contacting the distal ends of theclosing/opening means stopper 4340; and the cover 4360, which covers thedistal end of the hollow cylindrical tube 4330 and is fitted therein anddefines, at one end and the other end, the first and second openings4361 and 4362, respectively, wherein the portion of the cover 226 facingthe closing/opening means 4350 have a truncated cone shape.

The inner periphery of the proximal end of the hollow cylindrical tube4330 has a larger diameter than the diameter of the second fluidcommunication channel 4132 a to surround the second fluid communicationchannel 4132 a. The cover 4360 is configured as follows: one end thereofdefining the first opening 4361 is inserted into the hollow cylindricaltube 4330, while the other end defining the second opening 4362 isdisposed outside the hollow cylindrical tube 4330 and the inner face ofthe second opening 4362 may be tapered. Also, the closing/opening meansstopper 4340 may include one or more ribs protruding inwards from theinner face of the cover 4360.

The closing/opening means stopper 4340 may be provided in various formssuch as an elastic member such as a spring or a rod. The closing/openingmeans stopper 4340 may protrude from the inner face of the cover 4360 inthe form of a rib to limit the position of the closing/opening means4350.

The closing/opening means 4350 is disposed adjacent a distal enddefining the second opening 4362 defined in the cover 4360. Theclosing/opening means 4350 may be restricted within the space defined bythe closing/opening means stopper 4340. For example, the closing/openingmeans stopper 4340 may have a semicircular shape, and, threeclosing/opening means stopper 4340 may be spaced apart from each otherat equal intervals on and along the inner face of the cover 4360.

The hollow cylindrical tube 4330 has a groove or protrusion 4331, andthe cover 4360 has the protrusion or groove 4363 to be engaged with thegroove or protrusion 4331. Thus, the cover 4360 may be fixed in closecontact with the hollow cylindrical tube 4330. The inner space of thehollow cylindrical tube 4330 may be configured to fluid-communicate withthe second fluid communication channel 4132 a and to fluid-communicatewith the second opening 4362 of the cover 4360.

At the first position of the closing/opening means 4340 and theclosing/opening means 4350, the second opening 4362 of the cover 4360 isclosed to limit the movement of the cosmetic fluid through the secondfluid communication channel 4132 a. At the second position of theclosing/opening means 4340 and the closing/opening means 4350, thesecond opening 4362 is opened to allow movement of the cosmetic fluidthrough the second fluid communication channel 4132 a.

The closing/opening means 4350 is in contact with the distal end of theclosing/opening means stopper 4340 and is configured in a sphericalshape. By an external force generated by the volume change of thecosmetic fluid via the up and down movement of the actuation mechanism4140, the second opening 4362 of the cover 4360 may be reversibly openedand closed. The hollow cylindrical tube 4330 surrounds the communicationchannel 4132 a such that the inner diameter t1 of the hollow cylindricaltube 4330 is larger than the inner diameter of the second fluidcommunication channel 4132 a. Thus, the closing/opening means stopper4340 disposed in the hollow cylindrical tube 4330 mat be retained withinthe hollow cylindrical tube 4330 without departing therefrom into thesecond fluid communication channel 4132 a.

Alternatively, the closing/opening means stopper 4340 may furtherinclude a spring formed inside the cover 4360. The spring may bedisposed within the cover 4360 to position the closing/opening means4350 toward the distal end of the closing/opening means stopper 4340.The spring may elastically move left and right by the up and downmovement of the actuation mechanism 4140 to control opening and closingof the second opening 4362 by the closing/opening means 4350.

A groove or protrusion 4331 is formed in or on the outer ace of thehollow cylindrical tube 4330, while a protrusion or groove 4363, whichis engaged with the groove or protrusion 4331, is formed on or in theinner face of the cover 4360, such that the cover 4360 may be fixed inclose contact with the hollow cylindrical tube 4330. The inner space ofthe hollow cylindrical tube 4330 is in fluid communication with thesecond fluid communication channel 4132 a and in fluid communicationwith the second opening 4362 of the cover 4360 to provide cosmeticfluid-communication between the interior space S of the elongate mainbody 4110 and the fluid communication chamber 4131.

For example, the groove or protrusion 4331 and the protrusion or groove4362 may be fastened together by fitting. Alternatively, the fasteningmethod between the groove or protrusion 4331 and the protrusion orgroove 4362 may be replaced by a screw connection between the screwthread and the screw groove. The coupling method between the groove orprotrusion 4331 and the protrusion or groove 4362 may be variouslymodified or replaced as long as the cover 4360 may be closely fixed tothe hollow cylindrical tube 4330 via such coupling method. The presentdisclosure is not limited to the coupling method between the groove orprotrusion 4331 and the protrusion or groove 4362.

When the external force applied to the actuation mechanism 4140 isreleased, the cosmetic fluid having the same volume as the cosmeticfluid of the first volume of the cosmetic fluid stored in the firststorage sub-space s1 passes through the hollow cylindrical tube 4330 andthe second fluid communication channel 4132 a into thefluid-communication chamber 4131, and, thus, the volume of the firstcosmetic-fluid storage sub-space s1 is reduced by the first volume, andthe volume of the second inner sub-space s2 is increased by the volumeof the first volume.

In order for the cosmetic fluid to move from the first inner sub-spaceS1 of the elongate fluid-supply tube 4150 into the fluid communicationchamber 4131 through the fluid-inlet hole 132 a, only the cosmetic-fluidshould be present in the first inner sub-space S1. Therefore, since thefluid of the first volume has been emitted from the first innersub-space S1, the volume of the first inner sub-space S1 must bevariable to remove air creation therein.

To this end, the cosmetic-fluid dispenser 4100 according to the presentdisclosure comprises the compressing member 4190. The compressing member4190 may define the first inner sub-space S1 and prevent the inflow ofair into the sub-space s1.

The compressing member 4190 may be displaced in a sliding manner alongan inner face of the elongate fluid-supply tube 4150. This displacementis based on the volume change of the sub-space s1 due to the outflow ofthe cosmetic fluid from the first inner sub-space S1. Specifically,since there is only the cosmetic-fluid in the first inner sub-space S1,the empty space in the sub-space s1, which occurs in response to theoutflow of the cosmetic-fluid, must be filled with air or an externalsubstance. In this regard, the compressing member 4190 prevents inflowof the external air or material into the first inner sub-space S1, sothat the inner volume of the first inner sub-space S1 is reduced toremove the empty space, thereby to enable the cosmetic-fluid outflowtherefrom. The compressing member 4190 divides the inner space of theelongate fluid-supply tube 4150 into the first inner sub-space S1 andthe second inner sub-space S2. The first inner sub-space S1 is formedbetween the compressing member 4190 and the fluid-communication chamber4131, and the cosmetic-fluid is stored in the first inner sub-space.When the external force applied to the actuation mechanism 4140 isreleased, the first volume of cosmetic-fluid from the cosmetic-fluidstored in the first inner sub-space S1 passes through the secondfluid-communication channel 4132 a into the chamber 4131. At the sametime, the compressing member 4190 is displaced along the inner face ofthe elongate fluid-supply tube 4150 such that the volume of the firstinner sub-space is reduced by the first volume.

The second inner sub-space S2 is formed between the compressing member4190 and the sealing cap 4153 defining the rear end of the elongatefluid-supply tube 4150. When the volume of the first inner sub-space S1is reduced by the first volume, the volume of the second inner sub-spaceS2 is expanded by the first volume. In this connection, the sealing cap4153 has an air-communication hole 4152 defined therein, which allowsair-communication between the second inner sub-space S2 and an exteriorspace of the cosmetic-fluid dispenser 4100. The air-communication hole4152 serves as a channel through which, when the second inner sub-spaceS2 is expanded by the first volume, the outside air of the same volumeas the first volume flows into the second inner sub-space S2.

The elongate fluid-supply tube 4150 is detachably inserted into theinner space of the elongate main body 4110. The front end of theelongate fluid-supply tube 4150 is open and the rear end is closed bythe sealing cap 4153. The elongate fluid-supply tube 4150 is cylindricaland hollow. The interior space of the elongate fluid-supply tube 4150 isdivided into the first inner sub-space s1 and the second inner sub-spaces2 by the compressing member 4190.

The compressing member 4190 may be in intimate contact with the innerface of the elongate fluid-supply tube 4150. The compressing member 4190may include a compressing outer ring 4191 in intimate contact with theinner surface of the elongate fluid-supply tube 4150 and a fluidcompressing portion 4192 occupying a circular cross-sectional spacewithin the compressing outer ring 4191. The fluid compressing portion4192 is vertically coupled to the compressing outer ring 4191. Thecentral portion of the fluid compressing portion 4192 is aligned withthe air-communication hole 4152 and has a convexly stepped portiontoward the air-communication hole 4152. A cavity 4193 is defined in thestepped portion, and the hollow cylindrical portion 4330 may be receivedin the cavity 4193.

In order that the cosmetic fluid in the cosmetic elongate fluid-supplytube 4150 flows out, the compressing member 4190 progressively movestoward the front end of the elongate main body 4110 along the innersurface of the cosmetic elongate fluid-supply tube 4150. At this time,due to the configuration that the compressing member 4190 includes thecavity 4193, the compressing member 4160 may be configured to approachthe chamber body portion 4130 side of the elongate main body 4110without physical limitation. Accordingly, the cosmetic fluid containedin the first cosmetic-fluid storage sub-space s1 may be discharged tothe outside without remaining in the elongate main body 4110,specifically, the cosmetic elongate fluid-supply tube 4150.

An O-ring 4154 is provided on the outer surface of the front end of thecosmetic elongate fluid-supply tube 4150, while an annular groove 4119into which the O-ring 4154 is seated is defined in the inner face of theelongate main body 4110. In this way, the cosmetic elongate fluid-supplytube 4150 and the elongate main body 4110 may be tightly coupled to eachother. When the cosmetic elongate fluid-supply tube 4150 is insertedinto the elongate main body 4110, the O-ring 4153 may be fitted andfixedly secured in the groove 4119 defined in the elongate main body4110.

The rear end of the cosmetic elongate fluid-supply tube 4150 may beinserted into the elongate main body 4110. The rear end of the cosmeticelongate fluid-supply tube 4150 may define a distal end portion of theelongate main body 4110. For example, the rear end portion of thecosmetic elongate fluid-supply tube 4150 is formed in a stepped shapeand is fixedly inserted into the elongate main body 4110. The cosmeticelongate fluid-supply tube 4150 completely inserted into the elongatemain body 4110 may be integral with the elongate main body 4110 via therear sealing cap 4153 while the cosmetic elongate fluid-supply tube 4150may not protrude outside the elongate main body 4110.

The distal cosmetic-fluid outlet structure 4171 has a distal end portionhaving an fluid discharging hole 4171 a formed in its downstream regionfor discharging the cosmetic-fluid. The fluid discharging hole 4171 a isout of the inner cap 4120. The distal cosmetic-fluid outlet structure4171 has an inserted portion 1171 b formed in the upstream regionthereof and inserted into a distal end of the first fluid communicationchannel 4112.

When the proximal portion 4171 b is inserted into the inner cap tocommunicate with the distal end of the first fluid communication channel4112, a spacing Q is defined between the outer surface of the proximalportion 4171 b and the inner surface of the first fluid communicationchannel 4112. Further, the proximal portion 4171 b has a firstfluid-communication space V1 defined therein in communication with thefluid discharging hole 4171 a. More specifically, the first insertedportion 4171 c of the inserted portion may have the firstfluid-communication space V1 defined therein in communication with thefluid discharging hole 4171 a.

The first inserted portion 4171 c of the inserted portion has a firsthole H1 defined therein for realizing fluid communication between thefirst fluid-communication space V1 and the spacing Q. The secondinserted portion 4171 d thereof has a second fluid-communication spaceV2 defined therein in communication with the fluid-communication chamber4131, and has a second hole H2 defined therein to realizefluid-communication between the second fluid-communication space V2 andthe spacing Q. A closing/opening means 4173 is configured to surroundthe second hole H2 to open or close the second hole H2 to control themovement of the cosmetic fluid through the second hole H2.

When the external force is applied to the actuation mechanism 4140, theclosing/opening means 4173 is elastically deformed or displaced by thepressure resulting from the cosmetic fluid moving from the chamber tothe distal end of the first fluid communication channel 4112. As aresult, the second hole H2 is opened. When the pressure is weakened, theclosing/opening means 4173 may be restored or returned by the restoringforce due to the elastic deformation or displacement to close the secondhole H2.

Referring to FIG. 59, the actuation mechanism 4140 includes thefollowing components: a hollow piston portion 4141 being formed in acylindrical shape to be inserted into the fluid-communication chamber4131, wherein the hollow piston portion 4141 has a bottom inlet hole4141 a defined in a bottom portion thereof, and the hollow pistonportion 4141 has a fluid receiving space defined therein; a head supportportion 4142 extending upward from the hollow piston portion 4141 andhaving an outer diameter smaller than an outer diameter of the hollowpiston portion 4141 and being formed in a cylindrical shape and having ahole 4142 a defined in a top portion thereof; a head including a pressedportion 4145 to which an external force is applied and which is exposedout of the fluid-communication chamber 4131 and including an insertedrib 4146 a which extends from a bottom of the pressed portion 4145 andis inserted into the hole 4142 a; and first and second sealing rings4148 and 4149 spaced apart from each other in a vertical direction anddisposed around an outer surface of the hollow piston portion 4141.

The actuation mechanism 4140 may include the pressed portion 4145exposed to the outside of the fluid-communication chamber 4113 and ahead support portion 4142 inserted into the fluid-communication chamber4113. The pressed portion 4145 has a cross-sectional area larger thanthat of the fluid-communication chamber 4113 to facilitate theapplication of an external force such as a finger. The head supportportion 4142 has a cross-sectional area smaller than that of thefluid-communication chamber 4113. Accordingly, the head support portion4142 can be easily inserted into the fluid-communication chamber 4113and the up-and-down movement thereof within the fluid-communicationchamber 4113 can be easily performed. The pressed portion 4145 and thehead support portion 4142 may be integrally formed. The presentdisclosure is not limited to this. In the present embodiment, thepressed portion 4145 and the head support portion 4142 are separatecomponents from each other.

The pressed portion 4145 includes a cap-shaped portion 4145 a, which iscircular in cross section and open at the bottom, and is hollow has ablocked top. The portion 4145 has a pressed portion fixing rib 4145 b,which protrudes outward along the rim of the bottom end of the portion4145 a and defines a lower opening of the cap-shaped portion 4145 a andis fastened against the uppermost inner surface of thefluid-communication chamber 4113. The portion 4145 has an inserted rib4146 a protruding downward from the inner central position of thecap-shaped portion 4145 a, and a first engaging protrusion 4146 bprotruding horizontally from the outer face of the inserted rib 4146 a.The head support portion 4142 has a rib receiving hole 4142 a throughwhich the inserted rib 4146 a is inserted, and a first engaged groove4142 which is defined radially outward in the inner face of the ribreceiving hole 4142 a and is engaged with the first engaging protrusion4146 b. The bottom of the head support portion 4142 is coupled to thetop of the lower hollow piston portion 4141. The lower hollow pistonportion 4141 is hollow in the longitudinal and vertical direction andhas the bottom inlet hole 4141 a defined in the bottom portion.

With regard to the actuation mechanism 4140, the separate pressedportion 4145 and head support portion 4142 may be securely fastened toeach other as follows: the inserted rib 4146 a formed from the pressedportion 4145 is inserted into the rib receiving hole 4142 a; also, whenthe inserted rib 4146 a is inserted into the rib receiving hole 4142 a,the first engaging protrusion 4146 b formed on the inserted rib 4146 amay be engaged into the first engaged groove 4142 formed in the outerface of the rib receiving hole 4142 a.

The first engaging protrusion 4146 a and the first engaged groove 4142may extend in a direction perpendicular to the direction in which theinserted rib 4146 a is inserted into the rib receiving hole 4142 a andmay be fastened to each other in the perpendicular direction. As aresult, it is possible to further strengthen the fastening between thepressed portion 4145 and the head support portion 4142. Further, thepressed portion fixing ribs 4145 b may protrude outwards along the rimof the distal end defining the opening therein in the cap-shaped portion4145 a, may bear against the uppermost inner face of thefluid-communication chamber 4113. As a result, the pressed portion 4145may be fixed so as not to be separated from the present dispenserdevice.

The hollow piston portion 4141 has first and second lateralthrough-holes 4144 defined therein which penetrate through two oppositelateral points of the hollow piston portion 4141 respectively andcommunicate with the bottom receiving hole 4141 a and the innerreceiving space of the hollow piston portion 4141.

The first sealing ring 4148 surrounds the lower portion of the outerperiphery of the hollow piston portion 4141, while the second sealingring 4149 surrounds the upper portion of the outer periphery of thehollow piston portion 4141. All of the first and second lateralthrough-holes 4144 are defined between the first and second sealingrings 4148, 4149 in a vertical direction. An imaginary line between thefirst and second lateral through-holes 4144 meets the center of thecircular cross section of the hollow piston portion 414.

A first fluid communication channel 4112 extends in the second directionperpendicular to the first direction at one side of thefluid-communication chamber 4131 and in the chamber body portion 4130.The first fluid communication channel 4112 communicates with one of thefirst and second lateral through-holes 4144 and the distalcosmetic-fluid outlet structure 4171 that externally flows the cosmeticfluid.

A second fluid communication channel 4132 a extends in the seconddirection in the chamber body portion and at the other side of thefluid-communication chamber 4131. The second fluid communication channel4132 a communicates with the other of the first and second lateralthrough-holes 4144 and the cosmetic-fluid storage space of the elongatemain body 4110.

When an external force is applied to the actuation mechanism 4140, thefirst elastic member 4147 is compressed such that at least a portion ofthe pressed portion 4145 is inserted into the fluid-communicationchamber 4131 and the cosmetic fluid contained within the hollow pistonportion 4141 flow through one of the first and second lateralthrough-holes 4144 and then through the first fluid communicationchannel 4112. At this time, the first fluid communication channel 4112and the second fluid communication channel 4132 a are positioned betweenthe first and the second sealing rings 4148 and 4149 in terms of theheight level.

When the external force applied to the actuation mechanism 4140 isreleased, the first elastic member 4147 is restored or returned, thepressed portion 4145 protrudes outside the fluid-communication chamber4131, and, cosmetic fluid may flow into the hollow piston portion 4141from the first storage sub-space s1 of the fluid supply tube 4150through the second fluid communication channel 4132 a.

When the actuation mechanism 4140 is inserted into or withdrawn from thefluid-communication chamber 4131, the first sealing ring 4148 may slidealong the inner circumferential surface of the fluid-communicationchamber 4131. In addition, when the actuation mechanism 4140 is insertedinto or withdrawn from the fluid-communication chamber 4131, the secondsealing ring 4149 may slide along the inner circumferential surface ofthe fluid-communication chamber 4131. In particular, when the actuationmechanism 4140 is withdrawn from the fluid-communication chamber 4131,the second sealing ring 4149 prevents the cosmetic fluid contained inthe fluid-communication chamber 4131 from flowing out of thefluid-communication chamber 4131. The first and second sealing rings4148 and 4149 are spaced apart from each other in the verticaldirection, thereby preventing air from flowing into thefluid-communication chamber 4131.

The pair of actuation mechanisms 4140 may be configured in anotherembodiment. In this case, the pair of actuation mechanisms 4140 mayinclude an upper actuation mechanism and a lower actuation mechanism.Liquid may be present between the upper and lower actuation mechanisms.In this case, the sealing rings associated with the upper actuationmechanism may be the first sealing ring 4148 and the second sealing ring4149. Meanwhile, the lower actuation mechanism may include the thirdsealing ring and the fourth sealing ring. In this regard, when the loweractuation mechanism 4140 is inserted into or withdrawn from thefluid-communication chamber 4131, the third sealing ring may slide alongthe inner circumferential surface of the fluid-communication chamber4131. In addition, when the lower actuation mechanism 4140 is insertedinto or withdrawn from the fluid-communication chamber 4131, the fourthsealing ring may slide along the inner circumferential surface of thefluid-communication chamber 4131. In particular, when the loweractuation mechanism 4140 is withdrawn from the fluid-communicationchamber 4131, the fourth sealing ring prevents the cosmetic fluidcontained in the fluid-communication chamber 4131 from flowing out ofthe fluid-communication chamber 4131. The third and fourth sealing ringsare spaced apart from each other in the vertical direction, therebypreventing air from flowing into the fluid-communication chamber 4131.

In another embodiment, the first sealing ring 4148 may be configured tobe adjacent to the top side of the actuation mechanism 4140, while thesecond sealing ring 4149 may be configured to be adjacent to the bottomside of the actuation mechanism 4140. The first and second sealing rings4148 and 4149 may be seated in first annular groove and the secondannular groove which may be defined around the actuation mechanism 4140at the height levels corresponding to the height levels where the firstand the second sealing rings 4148 and 4149 are disposed respectively.The first annular groove and the second annular groove mayshape-correspond to the first and the second sealing rings 4148 and 4149respectively.

While the first and second sealing rings 4148 and 4149 are in closecontact with the inner wall of the fluid-communication chamber 4131, thefirst and second sealing rings 4148 and 4149 may move along the innerwall of the fluid-communication chamber 4131. Each of the first andsecond sealing rings 4148, 4149 may be embodied, for example, as aresilient O-ring or a rubber packing. The present disclosure is notlimited thereto. The first and second sealing rings 4148 and 4149 mayslide along the inner wall of the fluid-communication chamber 4131 whilebearing against and pressing the inner wall of the fluid-communicationchamber 4131.

In this case, the space below the second sealing ring 4149 of theactuation mechanism 4140 inside the fluid-communication chamber 4131 issealed by the second sealing ring 4149. Thereby, the pressure of thecosmetic fluid flowing from the fluid-communication chamber 4131 throughthe first fluid communication channel 4112 may be increased.

The second sealing ring 4149 prevents the loss of the cosmetic fluidthat, otherwise may flow through the fine flow gaps defined in the innerwall of the fluid-communication chamber 4131. Thereby, the outflow ofthe cosmetic fluid from the fluid-communication chamber 4131 through thefirst fluid communication channel 4112 may reliably realized. Comparedwith the absence of the second sealing ring 4147, the cosmetic fluidout-flow can be realized with stronger pressure via the second sealingring 4149.

When an external force is applied to the actuation mechanism 4140, thepressure of the cosmetic fluid in the fluid-communication chamber 4131rises, thereby limiting the amount of cosmetic fluid flowing through thesecond fluid communication channel 4132 a into the fluid-communicationchamber 4131. At the same time, the cosmetic fluid is discharged throughthe first fluid communication channel 4112. On the contrary, when anexternal force applied to the actuation mechanism 4140 is released, thepressure of the cosmetic fluid in the fluid-communication chamber 4131decreases, thereby preventing the discharge of the fluid through thefirst fluid communication channel 4112, and at the same time, the fluidmay flow from the fluid supply tube 4150 through the second fluidcommunication channel 4132 a into the fluid-communication chamber 4131.Thereby, the cosmetic fluid contained in the fluid-communication chamber4131 may be maintained at a certain amount.

In an alternative, with reference to FIG. 60, the actuation mechanism inthe region between the first and the second sealing rings 4148 and 4149may be concaved inwards. In the actuation mechanism according to thisembodiment, since the side face 4141′ between the first and the secondsealing rings 4148, 4149 is configured to be concave inward, the spacebetween the inner wall of the fluid-communication chamber and the outerwall of the actuation mechanism may be enlarged between the first andsecond sealing rings 4148 and 4149. Thus, the cosmetic fluid can easilyflow into the fluid-communication chamber 4131 from the fluid supplytube through one of the first and second lateral through-holes 4144located between the first and second sealing rings 4148, 4149 withoutany restriction about the viscosity of the cosmetic fluid. Further, thecosmetic fluid can easily be discharged into the first fluidcommunication channel 4113 through the other of the first and secondlateral through-holes 4144 between the first and second sealing rings4148, 4149 without any restriction about the viscosity of the cosmeticfluid.

The fluid-communication chamber 4113 may include an upper enlargedchamber portion 4113 a having a larger diameter than the head supportportion 4142 and a larger diameter than the lower chamber portion 4141a. The head support portion 4142 is inserted into the upper enlargedchamber portion 4113 a. The actuation mechanism may further include avertical additional cylindrical tube extending upwardly from the top ofthe hollow piston portion 4141 in the upper enlarged chamber portion4113 a.

The first and second sealing rings 4147 and 4148 may slide in thevertical direction along the inner face of the additional cylindricaltube. The first elastic member 4147 may extend along the outer surfaceof the additional cylindrical tube in the upper enlarged chamber portion4113 a. The first elastic member 4147 may extend upwardly to the headportion along the outer surface of the head support portion 4142.

The additional cylindrical tube in the upper enlarged chamber portion4113 a is disposed above the first fluid communication channel 4112. Theadditional cylindrical tube in the upper enlarged chamber portion 4113 ais located above the second fluid communication channel 4132 a. Theadditional cylindrical tube may have a larger diameter than the hollowpiston portion 4141. Thus, the cosmetic fluid flows from thecosmetic-fluid storage space S into the lower chamber portion below theupper enlarged chamber portion 4113 a through the second fluidcommunication channel 4132 a. Alternatively, the cosmetic fluid may flowfrom the cosmetic-fluid storage space S through the second fluidcommunication channel 4132 a into between the inner cylindrical surfaceof the additional cylindrical tube and the outer lateral surface of thehollow piston portion 4141. To the contrary, the cosmetic fluid may flowinto between the inner side face of the additional cylindrical tube andthe outer side face of the hollow piston portion 4141 and then may bedischarged through the first fluid communication channel 4112.

The upper enlarged chamber portion 4113 a has a larger diameter than thehead support portion 4142 and may be defined as the upper portion of thefluid-communication chamber 4113. The upper enlarged chamber portion4113 a has a diameter larger than that of the lower fluid-communicationchamber 4131 a. The upper enlarged chamber portion 4113 a accommodatesthe first elastic member 4147 therein. Alternatively, the upper enlargedchamber portion 4113 a may have the same diameter as the lowerfluid-communication chamber 4131 a, in which case the long spring typespring 4147 may surround the head support portion 421 within the upperchamber portion 4113 a.

The actuation mechanism 4140 can reversibly move by elastic deformationof the first elastic member 4147. When an external force is applied tothe actuation mechanism 4140, a first volume of cosmetic fluid containedin the fluid-communication chamber 4131 flows out through the firstfluid communication channel 4112 to the distal cosmetic-fluid outletstructure 4170. When the external force applied to the actuationmechanism 4140 is released,

A volume of cosmetic fluid corresponding to the cosmetic fluid of thefirst volume exiting the distal cosmetic-fluid outlet structure 4171flows from the cosmetic-fluid storage space of the fluid supply tube4150, through the second fluid communication channel 4132 a, and isintroduced into the communication chamber 4131.

When an external force is applied to the actuation mechanism 4140, theactuation mechanism 4140 is inserted into the fluid-communicationchamber 4131 so that a first volume of the cosmetic fluid contained inthe fluid-communication chamber 4131 passes through the first fluidcommunication channel 4112 and is discharged to the outside through thedistal cosmetic-fluid outlet structure 4170. When the external forceapplied to the actuation mechanism 4140 is released, the actuationmechanism 4140 is separated from the bottom of the fluid-communicationchamber 4131 by the restoring force of the first elastic member 4147 ofthe actuation mechanism 4140, the space for accommodating the cosmeticfluid in the fluid-communication chamber 4131 increases. Thus, the fluidspace within the fluid-communication chamber 4131 may be filled with acosmetic fluid at an amount that reversibly changes due to movement ofthe actuation mechanism 4140 within the fluid-communication chamber4131. For example, for this reversible change, in the actuationmechanism 4140, the bottom inlet hole 4141 a and the first and secondlateral through-holes 4144 can communicate with each other.

A cosmetic fluid of the same volume as the first volume cosmetic fluidexiting the distal cosmetic-fluid outlet structure 4171 is transferredfrom the cosmetic-fluid storage space S of the elongate main body 4110through the second fluid communication channel 4132 a to thefluid-communication can be introduced into the chamber 4131.

The space in the fluid-communication chamber 4131 defined in the chamberbody portion 4130 is reduced by the actuation mechanism 4140 that hasdownwardly moved within the fluid-communication chamber 4131 by anexternal force applied to the actuation mechanism 4140. Thereby, anamount corresponding to the first volume of the cosmetic fluid receivedin the fluid-communication chamber 4131 flows out through the firstfluid communication channel 4112 to the distal cosmetic-fluid outletstructure 4171. In addition, when the external force applied to theactuation mechanism 4140 is released, the actuation mechanism 4140 ismoved out of the fluid-communication chamber 4131 so that thefluid-communication chamber 4131 in the chamber body portion 4130 isexpanded by the first volume. At this time, the cosmetic fluid stored inthe elongate main body 4110 flows into the fluid-communication chamber4131 through the second opening 4362 of the cover 4360 to fill the firstvolume of the expanded fluid-communication chamber 4131.

The distal cosmetic-fluid outlet structure 4171 includes a fluiddischarging hole 4171 a protruding outward from the inner cap 4120 anddischarging the cosmetic fluid to the outside, and an inserted portion4171 b disposed inside the inner cap 4120 and inserted and coupled tothe inside of the distal end of the first fluid communication channel4112.

In this connection, the cross section of the fluid discharging hole 4171a may be formed in an elliptic shape so that the fluid discharging hole4171 a can be closely adhered to the skin. According to anotherembodiment of the present disclosure, a fluid discharging hole may becombined with a brush (not shown) for makeup. As a result, the cosmeticfluid drained through the fluid discharging hole may be absorbed via theuser's skin through the soft brush. At this time, the user may feel thetouch of a soft brush and use cosmetic fluid for skin beauty.

When the proximal portion 4171 b is inserted into the inner cap tocommunicate with the distal end of the first fluid communication channel4112, a spacing Q is defined between the outer surface of the proximalportion 4171 b and the inner surface of the first fluid communicationchannel 4112. Further, the proximal portion 4171 b has a firstfluid-communication space V1 defined therein in communication with thefluid discharging hole 4171 a. More specifically, the first insertedportion 4171 c of the inserted portion may have the firstfluid-communication space V1 defined therein in communication with thefluid discharging hole 4171 a.

The first inserted portion 4171 c of the inserted portion has a firsthole H1 defined therein for realizing fluid communication between thefirst fluid-communication space V1 and the spacing Q. The secondinserted portion 4171 d thereof has a second fluid-communication spaceV2 defined therein in communication with the fluid-communication chamber4131, and has a second hole H2 defined therein to realizefluid-communication between the second fluid-communication space V2 andthe spacing Q. A closing/opening means 4173 is configured to surroundthe second hole H2 to open or close the second hole H2 to control themovement of the cosmetic fluid through the second hole H2.

When the external force is applied to the actuation mechanism 4140, theclosing/opening means 4173 is elastically deformed or displaced by thepressure resulting from the cosmetic fluid moving from the chamber tothe distal end of the first fluid communication channel 4112. As aresult, the second hole H2 is opened. When the pressure is weakened, theclosing/opening means 4173 may be restored or returned by the restoringforce due to the elastic deformation or displacement to close the secondhole H2.

The closing/opening means 4173 is implemented as a kind of thin rubberfilm and extends along and on the annular outer circumferential surfaceof the second inserted portion 4171 d and is capable of opening andclosing the second hole H2 by elastic deformation or displacementthereof.

The cosmetic-fluid storage space of the elongate fluid supply tube 4150includes a reversibly volumetric first cosmetic-fluid storage sub-spaceS1 and a second cosmetic-fluid storage sub-space S2. The firstcosmetic-fluid storage sub-space s1 is a space from which the cosmeticfluid is delivered to the fluid-communication chamber 4131. The secondcosmetic-fluid storage sub-space s2 may receive air from the outside.

FIG. 59 is a perspective view of the actuation mechanism and the firstelastic member in FIG. 56. FIG. 60 is a perspective view of theactuation mechanism and first elastic member according to still furtheranother embodiment of the present disclosure.

Referring to FIG. 59, the actuation mechanism 4140 and the first elasticmember 4147 according to the present embodiment have the followingstructure: the first elastic member 4147 surrounds the head supportportion 4142 of the actuation mechanism 4140; the top of the firstelastic member 4147 is secured to a bottom face of the cap-shapedportion 4145 a of the pressed portion 4145; the lower end of the firstelastic member 4147 is seated on the step formed above the first andsecond fluid communication channels 4112, 4132 a inside thefluid-communication chamber 4113. In one embodiment, the first elasticmember 4147 extends in a vertical direction between the inner face ofthe upper enlarged chamber portion 4113 a formed in thefluid-communication chamber 4113 and the outer face of the head supportportion 4142 of the actuation mechanism 4140 may be expanded andcontracted vertically therebetween.

With respect to the actuation mechanism 4140, one of the first andsecond sealing rings 4148, 4149 surrounds the outer circumferentialsurface of the head support portion 4142, while the other of the firstand second sealing rings 4148, 4149 surrounds the outer periphery of thelower hollow piston portion 4141. The first and second lateralthrough-holes 4144 are passed through the opposite tow lateral points ofthe lower hollow piston portion 4141 so as to horizontally penetrate thelower hollow piston portion 4141. Thus, as shown in FIG. 58, when theactuation mechanism 4140 descends to a predetermined height level, astraight line between the first and second lateral through-holes 4144may be aligned with the first and second fluid communication channels4112 and 4132 a. This aligned straight channel may be referred to as alinear fluid delivery path.

In another embodiment, both the first sealing ring 4148 and the secondsealing ring 4149 may be disposed so as to surround the outercircumferential surface of the hollow piston portion 4141 and bevertically spaced from each other. In this case, at the level betweenthe first sealing ring 4148 and the second sealing ring 4149, the firstand second lateral through-holes 4144 may be defined. Because thehollowed-in inserted portion 4141 is internally hollow, the first andsecond lateral through-holes 4144 communicate with the bottom fluidopening 4141. Thus, the linear fluid delivery path also communicateswith the bottom fluid opening 4141.

The chamber body portion 4130 may have the fluid-communication chamber4131 defined in the chamber body portion 4130 and open at an upper endthereof and extending in a first direction perpendicular to thedirection of the escape of cosmetic fluid from the elongate main body4110. The chamber body portion 4130 has the first fluid communicationchannel 4112 defined therein at one side of the fluid-communicationchamber 4131, wherein the first fluid communication channel 4112communicates with the distal cosmetic-fluid outlet structure 4171 andextends in the second direction perpendicular to the first direction.The chamber body portion 4130 has the second fluid communication channel4132 a defined therein at the other side of the fluid-communicationchamber 4131 and wherein the second fluid communication channel 4132 aextends in a direction parallel to the second direction and communicateswith the fluid storage space of the elongate main body 4110

When an external force is applied to the actuation mechanism 4140, theactuation mechanism 4140 is inserted into the fluid-communicationchamber 4131 so that a first volume of the cosmetic fluid contained inthe fluid-communication chamber 4131 passes through the first fluidcommunication channel 4112 and is discharged to the outside through thedistal cosmetic-fluid outlet structure 4170. When the external forceapplied to the actuation mechanism 4140 is released, the actuationmechanism 4140 is separated from the bottom of the fluid-communicationchamber 4131 by the restoring force of the first elastic member 4147 ofthe actuation mechanism 4140, the space for accommodating the cosmeticfluid in the fluid-communication chamber 4131 increases. Thus, the fluidspace within the fluid-communication chamber 4131 may be filled with acosmetic fluid at an amount that reversibly changes due to movement ofthe actuation mechanism 4140 within the fluid-communication chamber4131. For example, for this reversible change, in the actuationmechanism 4140, the bottom inlet hole 4141 a and the first and secondlateral through-holes 4144 can communicate with each other. A cosmeticfluid of the same volume as the first volume cosmetic fluid exiting thedistal cosmetic-fluid outlet structure 4171 is transferred from thecosmetic-fluid storage space S of the elongate main body 4110 throughthe second fluid communication channel 4132 a to the fluid-communicationcan be introduced into the chamber 4131.

The first elastic member 4147 has an inner diameter corresponding to theouter diameter of the head support portion 4142. The first elasticmember 4147 may have a smaller diameter than the pressed portion 4145.

In an alternative, with reference to FIG. 60, the actuation mechanism inthe region between the first and the second sealing rings 4148 and 4149may be concaved inwards. In the actuation mechanism according to thisembodiment, since the side face 4141′ between the first and the secondsealing rings 4148, 4149 is configured to be concave inward, the spacebetween the inner wall of the fluid-communication chamber and the outerwall of the actuation mechanism may be enlarged between the first andsecond sealing rings 4148 and 4149. Thus, the cosmetic fluid can easilyflow into the fluid-communication chamber 4131 from the fluid supplytube through one of the first and second lateral through-holes 4144located between the first and second sealing rings 4148, 4149 withoutany restriction about the viscosity of the cosmetic fluid. Further, thecosmetic fluid can easily be discharged into the first fluidcommunication channel 4113 through the other of the first and secondlateral through-holes 4144 between the first and second sealing rings4148, 4149 without any restriction about the viscosity of the cosmeticfluid.

In the following, with reference to FIGS. 61 to 62, another embodimentof the present disclosure will be described. Except for the following,details similar to those described in the embodiment described in FIGS.53 to 60 are omitted.

FIG. 61 is a sectional view of the front portion of the elongate mainbody according to still further another embodiment of the presentdisclosure. FIG. 62 is a diagram schematically showing an external forceapplied to the actuation mechanism in FIG. 61.

With reference to FIG. 61 to FIG. 62, the cosmetic-fluid dispenseraccording to this embodiment includes a fluid-outlet adjustment ball4475 disposed in a distal cosmetic-fluid outlet structure 4471 tocontrol the amount of cosmetic fluid exiting through the first fluidcommunication channel 4112.

The distal cosmetic-fluid outlet structure 4171 includes the fluiddischarging hole 4171 a protruding outside the inner cap 4120 anddischarging the cosmetic fluid to the outside, and an inserted portiondisposed inside the inner cap 4120 and inserted into the distal end ofthe first fluid communication channel 4112. The inner diameter of thedistal end of the first fluid communication channel 4112 may be greaterthan the inner diameter of the proximal end portion of the first fluidcommunication channel 4112 facing the actuation mechanism 4140.

The fluid-outlet adjustment ball 4475 is disposed toward the distal endside of the first fluid communication channel 4112 inside the proximalend of the proximal portion 4171 b. The fluid-outlet adjustment ball4475 has a diameter that is greater than the inner diameter of the rearportion of the first fluid communication channel 4112. In the downstreamof the fluid-outlet adjustment ball 4475, the second elastic member 4473is disposed.

When the external force is applied to the actuation mechanism 4140, thecosmetic fluid provided in the cosmetic-fluid storage space movesthrough the first fluid communication channel 4112 to press thefluid-outlet adjustment ball 4475, thereby compressing the elasticmember 4473, the cosmetic fluid is discharged through the distal end ofthe first fluid communication channel 4112 and then through the distalcosmetic-fluid outlet structure 4171. When the cosmetic fluiddepressurizes the fluid-outlet adjustment ball 4475, due to therestoring force of the second elastic member 4473, the fluid-outletadjustment ball 4475 closes the rear end of the first fluidcommunication channel 4112.

In the cosmetic-fluid dispenser according to the present embodiment, thefluid-outlet adjustment ball 4475 is disposed in the distalcosmetic-fluid outlet structure 4471 so that the amount of cosmeticfluid that is the cosmetic that is discharged through the first fluidcommunication channel 4112 is controlled. When an external force isapplied to the actuation mechanism 4140, the fluid-outlet adjustmentball 4475, due to the pressure by the cosmetic fluid flowing toward thedistal end of the first fluid communication channel 4112, is moved inthe direction toward the fluid outlet structure 4171, that is, in thethird direction. When the pressure is weakened, the fluid-outletadjustment ball 4475 is moved by the second elastic member 4473 in afourth direction opposite to the third direction so that the opening4431 b of the distal end of the first fluid communication channel 4112may be closed.

For example, the cosmetic-fluid dispenser according to the presentembodiment includes, the spherical first fluid-outlet adjustment ball4475 and the spherical second closing/opening means 4350 around theactuation mechanism 4140, that it, in the distal cosmetic-fluid outletstructure 4171 for discharging the cosmetic fluid to the outside, andthe hollow cylindrical tube 4330 receiving the cosmetic fluid from thefirst cosmetic-fluid storage space S1 of the fluid supply tube 4150.

Along and on the outer face of the head support vertical portion 4142,the actuation mechanism 4140, the first elastic member may expand or becontracted.

As shown in FIG. 61 and FIG. 62, when the external force is releasedsuch that the pressed portion 4113 of the actuation mechanism 4140 movesupward, the second elastic member 4473 is moved in the fourth directionand is restored. Then, the fluid-outlet adjustment ball 4475 closes thedistal cosmetic-fluid outlet structure 4171. At this time, theclosing/opening means stopper 4340 is elastically biased in the thirddirection to move the closing/opening switcher 4350 away from the cover4360 so that the cosmetic fluid provided within the first cosmetic-fluidstorage space S1 of the elongate main body, that it, the fluid supplytube 4150 may be introduced into the fluid communication chamber 4131.

As shown in FIG. 61 and FIG. 62, when an external force is applied tothe pressed portion and the actuation mechanism 4140 is presseddownward, the second elastic member 4473 in a response to receiving theexternal force is urged in a direction toward the outside of the distalcosmetic-fluid outlet structure 4171, that is, in the third direction,the first fluid communication channel 4112 may be opened via thefluid-outlet adjustment ball 4475. Thus, the cosmetic fluid and air aredischarged to the outside through the distal cosmetic-fluid outletstructure 4471. At this time, the closing/opening means stopper 4340presses the closing/opening means 4350 in the fourth direction such thatthe inflow of the cosmetic fluid from the fluid storage space in theelongate main body into the second fluid communication channel 4132 a isrestricted.

FIG. 63 is a cross-sectional view of the front portion of the elongatemain body according to still further another embodiment of the presentdisclosure. FIG. 64 is a schematic view showing an external forceapplied to the actuation mechanism in FIG. 63. FIG. 65 is an enlargedview of a portion for controlling inflow of liquid in the rear portionof the elongate main body in FIG. 63. FIG. 66 is an exploded perspectiveview of FIG. 65.

FIG. 63 to FIG. 65, In the cosmetic-fluid dispenser according to thisembodiment, components to enable fluid-communication between the secondfluid communication channel 4132 a and the cosmetic-fluid storage spaceS (that is, the first sub-space s1) of the elongate main body 4110include a cosmetic-fluid inlet guide 41330 and an open cover 41360.

The chamber body portion 4130 further includes a hollow cosmetic-fluidinlet guide 41330 having one end in fluid communication with the secondfluid communication channel 4132 a and the other end protruding into thefirst inner sub-space S1; a hole-opening/closing member elastic support41340 received in the other end portion of the cosmetic-fluid inletguide 41330 and configured to support a hole-opening/closing member41350; the hole-opening/closing member 41350 disposed at the distal endof the hole-opening/closing member elastic support 41340; and a hollowelongate cover 41360 surrounding the other end of the cosmetic-fluidinlet guide 41330, wherein the hollow elongate cover has first andsecond holes 41361 and 41362 defined in one end and the other endthereof respectively, wherein a portion thereof contacting thehole-opening/closing member 41350 has a truncated cone shape.

One end of the cosmetic-fluid inlet guide 41330 has a diameter largerthan a diameter of the second fluid communication channel 4132 a so asto surround the second fluid communication channel 4132 a. A diameter ofthe first hole 41361 of the hollow elongate cover 41360 is greater thana diameter of its second hole 41362. Thus, the distal end of the hollowelongate cover 41360 has a truncated cone shape. Thehole-opening/closing member 41350 is disposed at the distal end of thehole-opening/closing member elastic support 41340 and has a sphericalshape. The hole-opening/closing member 41350 can reversibly open andclose the second opening 411362 of the hollow elongate cover 41360 via aforce exerted by the hole-opening/closing member elastic support 41340.

When the actuation mechanism 4140 is lowered, the second opening 411362of the hollow elongate cover 41360 is closed via thehole-opening/closing member elastic support 41340 and thehole-opening/closing member 41350, thus, to limit the flow of thecosmetic-fluid through the second fluid communication channel 4132 a.When the actuation mechanism 4140 is elevated, the second opening 411362is opened to allow the flow of the cosmetic fluid through the secondfluid communication channel 4132 a to be activated.

In one embodiment, the hole-opening/closing member elastic support 41340may be implemented as a spring. The hole-opening/closing member elasticsupport 41340 is received within the cosmetic-fluid inlet guide 41330and extends from one end to the other end of a portion of thecosmetic-fluid inlet guide 41330 protruding into the space s1. Thehole-opening/closing member 41350 is disposed at the distal end of thehole-opening/closing member elastic support 41340. Thehole-opening/closing member 41350 is configured to close the secondopening 411362 of the hollow elongate cover 41360. The diameter t1 ofthe cosmetic-fluid inlet guide 41330 is greater than the diameter of thesecond fluid communication channel 4132 a. Thus, thehole-opening/closing member elastic support 41340 received in thecosmetic-fluid inlet guide 41330 does not enter the second fluidcommunication channel 4132 a and is retained within the cosmetic-fluidinlet guide 41330.

When the pressure of the cosmetic-fluid in the fluid communicationchamber 4131 is not high, the hole-opening/closing member elasticsupport 41340 does not press the hole-opening/closing member 41350 sothat the second opening 411362 is not closed. Thereby, movement of thecosmetic-fluid through the second opening 411362 is possible. On theother hand, when the pressure within the fluid communication chamber4131 is high, the cosmetic-fluid presses the hole-opening/closing memberelastic support 41340, thereby pressing the hole-opening/closing member41350, thus to block the flow of fluid through the second opening411362.

The cosmetic-fluid inlet guide 41330 has an elongate hollow cylindricalshape. The hollow elongate cover 41360 has a larger inner diameter thanan outer diameter of the cosmetic-fluid inlet guide 41330 to accommodatethe cosmetic-fluid inlet guide 41330 therein. The hollow elongate cover41360 has an elongate hollow cylindrical shape. A portion of the hollowelongate cover 41360 in contact with the hole-opening/closing member41350 has a truncated-conical shape to surround the hole-opening/closingmember 41350 exposed outwardly from the cosmetic-fluid inlet guide41330. The cosmetic-fluid inlet guide 41330 is inserted into the hollowelongate cover 41360 so that the hole-opening/closing member elasticsupport 41340 and the hole-opening/closing member 41350 received withinthe cosmetic-fluid inlet guide 41330 is not prevented from escapetherefrom.

A first fastening ring 411331 is formed on the outer circumference ofthe cosmetic-fluid inlet guide 41330 and a second fastening ring 411362is formed on the inner circumference of the hollow elongate cover 41360.Via the engagement between the first fastening ring 411331 and thesecond fastening ring 411362, the hollow elongate cover 41360 is tightlycoupled to the cosmetic-fluid inlet guide 41330. The cosmetic-fluidinlet guide 41330 is inserted into the hollow elongate cover 41360 suchthat the second fluid communication channel 4132 a and the secondopening 411362 of the hollow elongate cover 41360 are arranged so as tofluid-communicate with each other.

In one embodiment, the first fastening ring 411331 and the secondfastening ring 411362 are implemented with a protrusion and a grooverespectively. The first fastening ring 411331 and the second fasteningring 411362 may be engaged with each other by pressure-fitting.Alternatively, the first fastening ring 411331 and the second fasteningring 411362 are realized by a groove and a protrusion respectively.Alternatively, the first fastening ring 411331 and the second fasteningring 411362 may be engaged with each other by a thread-type engagementmanner. The first and second fastening rings 41331 and 41362 areintended to securely secure the hollow elongate cover 41360 to thecosmetic-fluid inlet guide 41330. Thus, as long as this object isachieved by the first and second fastening rings 41331 and 41362,various configurations of the first and second fastening rings 41331 and41362 may be considered.

The cylindrical space or fluid communication chamber 4131 defined withinthe chamber body portion 4130 is reduced by a first volume by theactuation mechanism 4140 being displaced in the first direction by theapplied external force, and thus the fluid amount corresponding to thefirst volume flows out through the cosmetic-fluid outlet guide 41131 tothe distal cosmetic-fluid outlet structure 4171. To the contrary, whenthe applied external force is released, the actuation mechanism 4140 isdisplaced in the second direction opposite to the first direction, suchthat the cylindrical space or fluid communication chamber 4131 definedwithin the chamber body portion 4130 is expanded by the first volume. Atthis time, the cosmetic fluid stored in the elongate main body 4110flows through the second opening 411362, and the fluid inlet guide 41330into the cylindrical space in the chamber body 41132 to compensate forthe expanded first volume.

In other words, when an external force is applied, the actuationmechanism 4140 is displaced in a first direction such that at least aportion thereof is inserted into the fluid communication chamber 4131and thus, the first volume of the cosmetic-fluid from the cosmetic-fluidcontained in the cylindrical space is flowed through the first fluidcommunication channel 4112 into the distal cosmetic-fluid outletstructure 41171. When the applied external force is released, theactuation mechanism 4140 is displaced in a second direction opposite tothe first direction, the cosmetic-fluid of the first volume isintroduced from the inner sub-space S1 through the second opening411362, the fluid inlet guide 41330, and the second fluid communicationchannel 4132 a into the fluid communication chamber 4131 41132.

As for the conventional cosmetic container, the user needs to repeatedlyimmerse the brush into the liquid in the body in order to repeatedlyapplying the cosmetic liquid to the target skin. In this connection,since the brush has to be repeatedly put into and drawn out of thecontainer body, external air may be flowed into the container body and,thus, the cosmetic liquid is easily hardened.

However, the present cosmetic-fluid dispenser may be capable of smoothlydispensing a constant amount of cosmetic-fluid. This may improve theuser experience.

Further, the present cosmetic-fluid dispenser is always sealed toprevent deterioration and hardening of the cosmetic liquid therein.

Further, according to the present disclosure, it is possible to providethe cosmetic fluid dispenser capable of uniformly discharging a certainamount of cosmetic liquid without being influenced by an external force.

In addition, according to the present disclosure, it is possible toprovide the cosmetic fluid dispenser capable of effectively preventingdeterioration of the cosmetic liquid contained therein by stablyblocking the inflow of air or the like from the outside thereto.

In addition, according to the present disclosure, there is provided thecosmetic fluid dispenser which is easy to carry because leakage ofcosmetic liquid due to an uncontrolled external force thereto may not besuppressed.

In addition, according to the present disclosure, it is possible toprovide the narrow and elongate cosmetic fluid dispenser that is slimand small in size while providing an excellent esthetic feeling becauseno protruding portion in a width direction is formed.

Further, according to the present disclosure, it is possible to providethe cosmetic fluid dispenser wherein the elastic member controlling themovement of the actuation mechanism does not contact the cosmeticliquid, and other unnecessary members are omitted in the flow channel ofthe cosmetic liquid such that characteristics of the cosmetic liquid maybe maintained in a non-polluted state for a long period of time.

The above description is not to be taken in a limiting sense, but ismade merely for the purpose of describing the general principles ofexemplary embodiments, and many additional embodiments of thisdisclosure are possible. It is understood that no limitation of thescope of the disclosure is thereby intended. The scope of the disclosureshould be determined with reference to the Claims. Reference throughoutthis specification to “one embodiment,” “an embodiment,” “oneimplementation,” “an implementation,” or similar language means that aparticular feature, structure, or characteristic that is described inconnection with the embodiment is included in at least one embodiment ofthe present disclosure. Thus, appearances of the phrases “in oneembodiment,” “in an embodiment,” “one implementation,” “animplementation,” or similar language throughout this specification may,but do not necessarily, all refer to the same embodiment.

What is claimed is:
 1. A cosmetic-fluid dispenser comprising: anactuation mechanism configured to enable selective dispensing of acosmetic-fluid; a elongate main body having a main inner space definedtherein and opposite first and second end portions, wherein the mainbody has a first opening defined in a side portion thereof, wherein themain inner space contains therein a cosmetic-fluid, wherein theactuation mechanism passes through the first opening to enable theselective dispensing of a cosmetic-fluid; a fluid-communication chamberdisposed in the first end portion of the elongate main body, wherein thefluid-communication chamber fluid-communicates with the elongate mainbody, wherein the fluid-communication chamber is configured to cooperatewith the actuation mechanism to dispense a cosmetic-fluid out of theelongate main body; a distal cosmetic-fluid outlet structurefluid-communicating with the fluid-communication chamber, wherein thedistal cosmetic-fluid outlet structure is disposed out of the main body;and a cap removably coupled to the elongate main body at the first endportion, wherein the fluid-communication chamber includes a chamber bodyhaving a cylindrical inner space defined therein, and a cosmetic-fluidoutlet guide in fluid-communication with the chamber body, wherein acosmetic-fluid outlet guide is in fluid-communication with the distalcosmetic-fluid outlet structure, wherein the chamber body has afluid-inlet hole formed therein, a fluid-outlet hole fluid-communicatingwith a cosmetic-fluid outlet guide, and a second openingposition-corresponding to the first opening, wherein a cosmetic fluidstored in the main body flows into the cylindrical chamber through thefluid-inlet hole, wherein the actuation mechanism is configured: uponapplication of an external force thereto, to move in a first directionto be at least partially inserted to the cylindrical space in thechamber body, thereby to discharge a first volume of cosmetic fluidcontained in the cylindrical space in the chamber body through thefluid-outlet hole into the cosmetic fluid outlet; upon release of theapplied external force, to move in a second direction opposite to thefirst direction, thereby to enable a cosmetic fluid of the same volumeas the first volume to flow from the main body into the chamber bodythrough the fluid-inlet hole, wherein the actuation mechanism includes:a pushed portion protruding out of the elongate main body to receive theexternal force; an insertable cylinder connected to the pushed portionand passing through the first and second openings; and a first elasticmember loaded on the insertable cylinder and disposed within thecylindrical space in the chamber body, wherein the first elastic memberis elastically deformed via the insertable cylinder when the externalforce is applied to the pushed portion, wherein the first elastic memberis restored by an elastic restoring force when the external force isreleased, wherein when the external force is applied to the pushedportion, the insertable cylinder is moved from a first position to asecond position; when the external force applied to the pushed portionis released, the insertable cylinder is moved from the second positionto the first position by the first elastic member, wherein when theinsertable cylinder is at the second position, the fluid-inlet hole isclosed to disallow flow of a cosmetic-fluid through the fluid-inlethole; when the insertable cylinder is at the first position, thefluid-inlet hole is opened to allow flow of a cosmetic-fluid through thefluid-inlet hole.
 2. The dispenser of claim 1, the cylinder is loweredfrom a first position to a second position via external force beingapplied the pressed portion, while the cylinder rises up from the secondposition to the first position via elastic restoring force of the firstelastic member, wherein when the cylinder is at the second position, thefluid inlet hole is closed while the cylinder is at the first position,the fluid inlet hole is opened, wherein the cap further comprises afastening rib projecting from a distal end of the cap toward theactuation mechanism, wherein the actuation mechanism further comprises astep portion formed between the pushed portion and the insertablecylinder, the step portion having a diameter smaller than a diameter ofthe pushed portion, wherein the fastening rib extends toward the stepportion, wherein a distal end of the fastening rib is rounded toshape-correspond to an outer circumference of the step portion, whereinthe fastening rib protrudes toward an outer side face of the stepportion so as to support a bottom of the pushed portion thereon toprevent movement of the pushed portion.
 3. The dispenser of claim 1,wherein the actuation mechanism includes an proximal sealing ringcoupled to the insertable cylinder, wherein the proximal sealing ring isconfigured to prevent escape of a cosmetic fluid out of the cylindricalspace of the chamber body when the insertable cylinder moves from thefirst direction to the second direction or from the second direction tothe first direction, wherein the proximal sealing ring is configured toprevent air flow in and out of the cylindrical space of the chamber bodythrough the first opening, wherein the proximal sealing ring is engagedwith a proximal end of an inserted portion of the insertable cylinder,wherein the proximal sealing ring projects further outwardly than anouter diameter of an extension portion between a proximal end and adistal end of an inserted portion of the insertable cylinder, whereinthe extension portion has a diameter substantially equal to a diameterof the cylindrical space defined in the chamber body, and each of theproximal end and the distal end of an inserted portion has a diametersmaller than the diameter of the extension portion, wherein in themovement of the cylinder, the proximal sealing ring is compressed by acylindrical inner wall of the chamber body to have a diametersubstantially equal to a diameter of the cylindrical space of thechamber body, wherein the actuation mechanism further includes a distalsealing ring coupled to the insertable cylinder, wherein the distalsealing ring slides along and on the cylindrical inner wall of thechamber body when the insertable cylinder moves from the first directionto the second direction or from the second direction to the firstdirection, wherein the distal sealing ring is engaged with the distalend of the inserted portion of the insertable cylinder, wherein thedistal sealing ring further projects outwardly beyond the diameter ofthe extension portion between the proximal and distal ends of theinserted portion of the insertable cylinder, wherein, in the movement ofthe cylinder, the distal sealing ring is compressed by the inner wall ofthe chamber body to have a diameter substantially the same as thediameter of the cylindrical space of the chamber body.
 4. The dispenserof claim 1, further comprising a compressing member disposed in the maininner space of the elongate main body, wherein the compressing member isconfigured to divide the main inner space into a first inner sub-spaceand a second inner sub-space, wherein a cosmetic-fluid is stored in thefirst inner sub-space defined between the compressing member and thefluid-communication chamber, wherein when the external force applied tothe actuation mechanism is released such that a cosmetic fluid of thefirst volume from the cosmetic fluid stored in the first inner sub-spacepasses through the fluid-inlet hole into the cylindrical space, thecompressing member is displaced in a sliding manner along and on aninner face of the elongate main body such that a volume of the firstinner sub-space is reduced by the first volume.
 5. The dispenser ofclaim 4, further comprising a sealing cap passing through and sealingthe second end of the elongate main body, wherein the second innersub-space is defined between the compressing member and the sealing cap,wherein when a volume of the first inner sub-space is reduced by thefirst volume, a volume of the second inner sub-space is expanded by thefirst volume.
 6. The dispenser of claim 1, wherein the distalcosmetic-fluid outlet structure includes: an outlet hole formed in adownstream region thereof for discharging a cosmetic-fluid; and aninserted portion formed in an upstream region thereof and inserted intoa distal end of the cosmetic-fluid outlet guide, wherein when theinserted portion is inserted into the distal end of the cosmetic-fluidoutlet guide, a spacing is defined between an outer peripheral surfaceof the inserted portion and an inner peripheral surface of thecosmetic-fluid outlet guide, wherein the inserted portion has a firstinserted sub-portion, a second inserted sub-portion, and ahole-opening/closing member, wherein the first inserted sub-portiondefines therein a first fluid-communication channel influid-communication with the outlet hole, wherein the first insertedsub-portion has a first fluid-communication hole defined therein toallow fluid-communication between the first fluid-communication channeland the spacing, wherein the second inserted sub-portion defines thereina second fluid-communication channel in fluid-communication with thefluid-outlet hole, wherein the second inserted sub-portion has a secondfluid-communication hole defined therein to allow fluid-communicationbetween the second fluid-communication channel and the spacing, whereinthe hole-opening/closing member is constructed to surround the secondfluid-communication hole and to control flow of a cosmetic-fluid throughthe second fluid-communication hole.
 7. The dispenser of claim 6,wherein when an external force is applied to the actuation mechanism,the hole-opening/closing member is elastically deformed via a pressuregenerated by a cosmetic-fluid moving toward the distal end of acosmetic-fluid outlet guide through the fluid-outlet hole, thereby toopen the second fluid-communication hole, wherein when the externalforce applied to the actuation mechanism is released such that thepressure is weakened, the hole-opening/closing member is restored by anelastic restoring force, thereby to close the second fluid-communicationhole.
 8. The dispenser of claim 1, wherein a removable cosmetic-fluidstorage unit is removably received in the main inner space of the mainbody, wherein the removable cosmetic-fluid storage unit includes: aremovable elongate body having an elongate inner space therein, whereinthe removable elongate body is removably inserted into the inner spaceof the elongate main body; a compressing member disposed in the elongateinner space to divide the elongate inner space of the removable elongatebody into a first inner sub-space and a second inner sub-space; and asealing cap configured to seal the inner space of the removable elongatebody and the second end of the elongate main body, wherein acosmetic-fluid is stored in the first inner sub-space defined betweenthe compressing member and the chamber body of the fluid-communicationchamber, wherein when the external force applied to the actuationmechanism is released so that a cosmetic-fluid of the first-volume froma cosmetic-fluid stored in the first inner sub-space passes through thefluid-inlet hole into the cylindrical space of the chamber body, thecompressing member is displaced in a sliding manner along and on aninner face of the removable elongate body so that a volume of the firstinner sub-space is reduced by the first volume.
 9. A cosmetic-fluiddispenser comprising: an actuation mechanism configured to enableselective dispensing of a cosmetic-fluid; a elongate main body having amain inner space defined therein and opposite first and second endportions, wherein the main body has a first opening defined in a sideportion thereof, wherein the main inner space contains therein acosmetic-fluid, wherein the actuation mechanism passes through the firstopening to enable the selective dispensing of a cosmetic-fluid; afluid-communication chamber disposed in the first end portion of theelongate main body, wherein the fluid-communication chamberfluid-communicates with the elongate main body, wherein thefluid-communication chamber is configured to cooperate with theactuation mechanism to dispense a cosmetic-fluid out of the elongatemain body; a distal cosmetic-fluid outlet structure fluid-communicatingwith the fluid-communication chamber, wherein the distal cosmetic-fluidoutlet structure is disposed out of the main body; and a cap removablycoupled to the elongate main body at the first end portion, wherein thefluid-communication chamber includes a chamber body having a cylindricalinner space defined therein, and a cosmetic-fluid outlet guide influid-communication with the chamber body, wherein a cosmetic-fluidoutlet guide is in fluid-communication with the distal cosmetic-fluidoutlet structure, wherein the chamber body has a fluid-inlet hole formedtherein, a fluid-outlet hole fluid-communicating with a cosmetic-fluidoutlet guide, and a second opening position-corresponding to the firstopening, wherein a cosmetic fluid stored in the main body flows into thecylindrical chamber through the fluid-inlet hole, wherein the actuationmechanism is configured: upon application of an external force thereto,to move in a first direction to be at least partially inserted to thecylindrical space in the chamber body, thereby to discharge a firstvolume of cosmetic fluid contained in the cylindrical space in thechamber body through the fluid-outlet hole into the cosmetic fluidoutlet; upon release of the applied external force, to move in a seconddirection opposite to the first direction, thereby to enable a cosmeticfluid of the same volume as the first volume to flow from the main bodyinto the chamber body through the fluid-inlet hole, wherein theactuation mechanism includes: a pushed portion protruding out of theelongate main body to receive the external force; an insertable cylinderconnected to the pushed portion and passing through the first and secondopenings; and a first elastic member loaded on the insertable cylinderand disposed within the cylindrical space in the chamber body, whereinthe first elastic member is elastically deformed via the insertablecylinder when the external force is applied to the pushed portion,wherein the first elastic member is restored by an elastic restoringforce when the external force is released, wherein thefluid-communication chamber further includes: a hollow cosmetic-fluidinlet guide having a proximal portion in fluid-communication with thefluid-inlet hole and a distal portion protruding into the main innerspace of the main body; a hole-opening/closing member elastic supportreceived in a cosmetic-fluid inlet guide and configured to support ahole-opening/closing member; the hole-opening/closing member disposed ata distal end of the hole-opening/closing member elastic support; and ahollow elongate cover surrounding the distal portion of a cosmetic-fluidinlet guide, wherein the hollow elongate cover has first and secondholes defined in proximal and distal ends thereof respectively, whereina portion of the cover contacting the hole-opening/closing member has atruncated cone shape, wherein when the external force is applied to thepushed portion, the insertable cylinder is moved from a first positionto a second position; when the external force applied to the pushedportion is released, the insertable cylinder is moved from the secondposition to the first position by the first elastic member, wherein whenthe insertable cylinder is at the second position, the second hole isclosed via the hole-opening/closing member being pressured by thehole-opening/closing member elastic support, thereby to disallow flow ofa cosmetic-fluid through the fluid-inlet hole, wherein when theinsertable cylinder is at the first position, the second hole is openedto allow flow of a cosmetic-fluid through the fluid-inlet hole.
 10. Thedispenser of claim 9, wherein the cylinder is lowered from a firstposition to a second position via external force being applied thepressed portion, while the cylinder rises up from the second position tothe first position via elastic restoring force of the first elasticmember, wherein when the cylinder is at the second position, the fluidinlet hole is closed while the cylinder is at the first position, thefluid inlet hole is opened, wherein the cap further comprises afastening rib projecting from a distal end of the cap toward theactuation mechanism, wherein the actuation mechanism further comprises astep portion formed between the pushed portion and the insertablecylinder, the step portion having a diameter smaller than a diameter ofthe pushed portion, wherein the fastening rib extends toward the stepportion, wherein a distal end of the fastening rib is rounded toshape-correspond to an outer circumference of the step portion, whereinthe fastening rib protrudes toward an outer side face of the stepportion so as to support a bottom of the pushed portion thereon toprevent movement of the pushed portion.
 11. The dispenser of claim 9,wherein a proximal end of the cosmetic-fluid inlet guide has a diameterlarger than a diameter of the fluid-inlet hole so as to surround thefluid-inlet hole, wherein a diameter of the first hole of the hollowelongate cover is greater than a diameter of the second hole thereof,wherein a distal end of the hollow elongate cover has a truncated coneshape, wherein the hole-opening/closing member elastic support includesa spring received in the cosmetic-fluid inlet guide, wherein thehole-opening/closing member is disposed at the distal end of thehole-opening/closing member elastic support and has a spherical shape,wherein the hole-opening/closing member is configured to reversibly openand close the second hole of the hollow elongate cover via a forceexerted by the hole-opening/closing member elastic support.
 12. Thedispenser of claim 11, wherein a first fastening structure is formed onand along an outer circumference of the cosmetic-fluid inlet guide, anda second fastening structure is formed on and along an innercircumference of the hollow elongate cover, wherein via engagementbetween the first fastening structure and the second fasteningstructure, the hollow elongate cover is tightly coupled to thecosmetic-fluid inlet guide, wherein the cosmetic-fluid inlet guide isinserted into the hollow elongate cover such that the fluid-inlet holeand the second hole of the hollow elongate cover are arranged so as tofluid-communicate with each other.
 13. The dispenser of claim 9, whereinthe actuation mechanism includes an proximal sealing ring coupled to theinsertable cylinder, wherein the proximal sealing ring is configured toprevent escape of a cosmetic fluid out of the cylindrical space of thechamber body when the insertable cylinder moves from the first directionto the second direction or from the second direction to the firstdirection, wherein the proximal sealing ring is configured to preventair flow in and out of the cylindrical space of the chamber body throughthe first opening, wherein the proximal sealing ring is engaged with aproximal end of an inserted portion of the insertable cylinder, whereinthe proximal sealing ring projects further outwardly than an outerdiameter of an extension portion between a proximal end and a distal endof an inserted portion of the insertable cylinder, wherein the extensionportion has a diameter substantially equal to a diameter of thecylindrical space defined in the chamber body, and each of the proximalend and the distal end of an inserted portion has a diameter smallerthan the diameter of the extension portion, wherein in the movement ofthe cylinder, the proximal sealing ring is compressed by a cylindricalinner wall of the chamber body to have a diameter substantially equal toa diameter of the cylindrical space of the chamber body, wherein theactuation mechanism further includes a distal sealing ring coupled tothe insertable cylinder, wherein the distal sealing ring slides alongand on the cylindrical inner wall of the chamber body when theinsertable cylinder moves from the first direction to the seconddirection or from the second direction to the first direction, whereinthe distal sealing ring is engaged with the distal end of the insertedportion of the insertable cylinder, wherein the distal sealing ringfurther projects outwardly beyond the diameter of the extension portionbetween the proximal and distal ends of the inserted portion of theinsertable cylinder, wherein, in the movement of the cylinder, thedistal sealing ring is compressed by the inner wall of the chamber bodyto have a diameter substantially the same as the diameter of thecylindrical space of the chamber body.
 14. The dispenser of claim 9,further comprising a compressing member disposed in the main inner spaceof the elongate main body, wherein the compressing member is configuredto divide the main inner space into a first inner sub-space and a secondinner sub-space, wherein a cosmetic-fluid is stored in the first innersub-space defined between the compressing member and thefluid-communication chamber, wherein when the external force applied tothe actuation mechanism is released such that a cosmetic fluid of thefirst volume from the cosmetic fluid stored in the first inner sub-spacepasses through the hollow fluid inlet guide and the fluid-inlet holeinto the cylindrical space, the compressing member is displaced in asliding manner along and on an inner face of the elongate main body suchthat a volume of the first inner sub-space is reduced by the firstvolume, wherein the dispenser further comprises a sealing cap passingthrough and sealing the second end of the elongate main body, whereinthe second inner sub-space is defined between the compressing member andthe sealing cap, wherein when a volume of the first inner sub-space isreduced by the first volume, a volume of the second inner sub-space isexpanded by the first volume, wherein the sealing cap has anair-communication hole defined therein, wherein the air-communicationhole allows air-communication between the second inner sub-space and anexterior space of the cosmetic-fluid dispenser, wherein theair-communication hole defines a channel through which, when the secondinner sub-space is expanded by the first volume, an outside air of thesame volume as the first volume flows into the second inner sub-space.15. The dispenser of claim 9, wherein the distal cosmetic-fluid outletstructure includes: an outlet hole formed in a downstream region thereoffor discharging a cosmetic-fluid; and an inserted portion formed in anupstream region thereof and inserted into a distal end of thecosmetic-fluid outlet guide, wherein when the inserted portion isinserted into the distal end of the cosmetic-fluid outlet guide, aspacing is defined between an outer peripheral surface of the insertedportion and an inner peripheral surface of the cosmetic-fluid outletguide, wherein the inserted portion has a first inserted sub-portion, asecond inserted sub-portion, and a hole-opening/closing member, whereinthe first inserted sub-portion defines therein a firstfluid-communication channel in fluid-communication with the outlet hole,wherein the first inserted sub-portion has a first fluid-communicationhole defined therein to allow fluid-communication between the firstfluid-communication channel and the spacing, wherein the second insertedsub-portion defines therein a second fluid-communication channel influid-communication with the fluid-outlet hole, wherein the secondinserted sub-portion has a second fluid-communication hole definedtherein to allow fluid-communication between the secondfluid-communication channel and the spacing, wherein thehole-opening/closing member is constructed to surround the secondfluid-communication hole and to control flow of a cosmetic-fluid throughthe second fluid-communication hole.
 16. The dispenser of claim 15,wherein when an external force is applied to the actuation mechanism,the hole-opening/closing member is elastically deformed via a pressuregenerated by a cosmetic-fluid moving toward the distal end of acosmetic-fluid outlet guide through the fluid-outlet hole, thereby toopen the second fluid-communication hole, wherein when the externalforce applied to the actuation mechanism is released such that thepressure is weakened, the hole-opening/closing member is restored by anelastic restoring force, thereby to close the second fluid-communicationhole.
 17. The dispenser of claim 9, wherein a removable cosmetic-fluidstorage unit is removably received in the main inner space of the mainbody, wherein the removable cosmetic-fluid storage unit includes: aremovable elongate body having an elongate inner space therein, whereinthe removable elongate body is removably inserted into the inner spaceof the elongate main body; a compressing member disposed in the elongateinner space to divide the elongate inner space of the removable elongatebody into a first inner sub-space and a second inner sub-space; and asealing cap configured to seal the inner space of the removable elongatebody and the second end of the elongate main body, wherein acosmetic-fluid is stored in the first inner sub-space defined betweenthe compressing member and the chamber body of the fluid-communicationchamber, wherein when the external force applied to the actuationmechanism is released so that a cosmetic-fluid of the first-volume froma cosmetic-fluid stored in the first inner sub-space passes through thefluid-inlet hole into the cylindrical space of the chamber body, thecompressing member is displaced in a sliding manner along and on aninner face of the removable elongate body so that a volume of the firstinner sub-space is reduced by the first volume.
 18. The dispenser ofclaim 9, wherein the distal cosmetic-fluid outlet structure includes: anoutlet hole formed in a downstream region thereof for discharging acosmetic-fluid; and an inserted portion formed in an upstream regionthereof and inserted into a distal end of the cosmetic-fluid outletguide, wherein the outlet hole has an elliptical-shaped cross-section,wherein an inner diameter of a distal end portion of the cosmetic-fluidoutlet guide is larger than an inner diameter of a middle extensionportion of the cosmetic-fluid outlet guide, wherein the inserted portionof the distal cosmetic-fluid outlet structure is inserted into thedistal end portion of the cosmetic-fluid outlet guide.
 19. The dispenserof claim 18, further comprising: a second elastic member disposedbetween an outer peripheral surface of the inserted portion of thedistal cosmetic-fluid outlet structure, and an inner peripheral surfaceof the distal end portion of the cosmetic-fluid outlet guide; and anoutlet-control ball disposed at a proximal end of the second elasticmember, wherein the outlet-control ball has a larger diameter than adiameter of the middle extension portion of the cosmetic-fluid outletguide.
 20. The dispenser of claim 19, wherein when an external force isapplied to the actuation mechanism, the outlet-control ball is subjectedto a pressure generated by the cosmetic-fluid moving toward the distalend of the cosmetic-fluid outlet guide through the fluid-outlet hole,and, thus, is moved in a third direction, wherein the third direction isperpendicular to the first direction or second direction, wherein thethird direction is a direction going away from the cylindrical space,wherein when the pressure generated by the cosmetic-fluid is weakened,the outlet-control ball is moved by the second elastic member in afourth direction opposite to the third direction, thereby to close afurther inlet hole defined in a boundary region between the distal endportion and the middle extension portion of the cosmetic-fluid outletguide.
 21. A cosmetic-fluid dispenser comprising: an elongate main bodyhaving a cosmetic-fluid storage space defined therein to containcosmetic fluid therein, wherein the elongate main body has a chamberbody portion; a fluid-communication chamber defined in the chamber bodyportion in a first direction, wherein the first direction is a directionperpendicular to a longitudinal direction of the elongate main body; anactuation mechanism at least partially hollowed and insertable into thefluid-communication chamber, wherein a top thereof protrudes outside thefluid-communication chamber, and a bottom thereof is received in thefluid-communication chamber, and has a bottom inlet hole definedtherein; a first vertical elastic hollow member having a lower enddisposed on a bottom face of the fluid communication chamber, wherein atleast a portion of an upper portion thereof is inserted into theactuation mechanism through the bottom inlet hole; a first fluidcommunication channel defined in the chamber body portion in a directionaway from the cosmetic-fluid storage space; a second fluid communicationchannel defined in the chamber body portion to fluid-communicate withthe cosmetic-fluid storage space; and a cosmetic-fluid outlet structureconfigured to communicate with the first fluid communication channel,wherein the cosmetic-fluid outlet structure has a fluid discharging holedefined in a distal end thereof and exposed to an outside of thedispenser, wherein a top of the chamber body portion has a first roundconcaved top portion having an opening defined therein through which theactuation mechanism passes into the chamber, wherein an outer face ofthe top of the actuation mechanism has a shape conformal to a roundconcaved shape of the round concaved top portion.
 22. The cosmetic-fluiddispenser of claim 21, wherein the cosmetic-fluid dispenser furthercomprise: an inner cap coupled to one longitudinal end of the elongatemain body, the inner cap having a second round concaved top portioncorresponding in position to the first round concaved top and having ashape conformal to the shape of the first round concaved top portion,wherein the second round concaved top portion has an opening definedtherein through which the actuation mechanism passes into the chamber;an outer cap having a receiving space for receiving the distalcosmetic-fluid outlet structure, wherein the outer cap is removablyengaged with the inner cap, wherein the receiving space is defined as acylindrical hollow inner space for partially receiving the inner cap.23. The cosmetic-fluid dispenser of claim 21, wherein each of the firstand second fluid communication channels extends in a second direction,wherein the second direction is the longitudinal direction of theelongate main body, wherein a hollow cylindrical tube has an innerdiameter greater than an diameter of the second fluid communicationchannel, and the hollow cylindrical tube protrudes from an outer face ofthe chamber body portion into the fluid storage space defined in themain body, wherein a hollow cover portion is partially fitted into thehollow cylindrical tube and has a first opening defined at a proximalend thereof communicating with the second fluid communication channel,and has a second opening defined at a distal end thereof communicatingwith the fluid storage space, wherein closing/opening means isconfigured to reversibly open and close the second opening defined inthe cover portion, wherein the closing/opening means is disposed in thecover portion and is movable, wherein a closing/opening means stopperhas an annular shape and protrudes inwardly from an inner circumferenceof the cover portion to limit movement of the closing/opening means. 24.The cosmetic-fluid dispenser of claim 23, wherein the cover portion hasan outer portion disposed out of the hollow cylindrical tube, whereinthe outer portion defines the second opening defined therein, whereinthe outer portion has a hollow truncated conical shape.
 25. Thecosmetic-fluid dispenser of claim 24, wherein the hollow cylindricaltube has an annular groove defined in the inner face thereof while thecover portion has an annular protrusion defined on an outer facethereof, wherein the annular protrusion is engaged into the annualgroove; alternatively, the hollow cylindrical tube has an annularprotrusion defined on the inner face thereof while the cover portion hasan annular groove defined in an outer face thereof, wherein the annularprotrusion is engaged into the annual groove; and wherein the innerspace of the hollow cylindrical tube is configured to fluid-communicatewith the second fluid communication channel and to fluid-communicatewith the second opening of the cover portion.
 26. The cosmetic-fluiddispenser of claim 21, wherein the first elastic member is configuredsuch that elastic deformation of the first elastic member allows up anddown movements of the actuation mechanism to be reversible, wherein whenan external force is applied to the actuation mechanism, a first volumeof cosmetic fluid contained in the fluid-communication chamber flowsthrough the first fluid communication channel into the cosmetic-fluidoutlet structure, wherein when the external force applied to theactuation mechanism is released, cosmetic fluid of an amount equal tothe first volume flows from the cosmetic-fluid storage space through thesecond fluid communication channel into the fluid-communication chamber.27. The cosmetic-fluid dispenser of claim 26, wherein the actuationmechanism includes: a hollow piston portion formed in a cylindricalshape to be inserted into the fluid-communication chamber, wherein thehollow piston portion has a bottom inlet hole defined in a bottomportion thereof, wherein the hollow piston portion has a fluid receivingspace defined therein; a head support portion extending upward from thehollow piston portion, wherein the head support portion has an outerdiameter smaller than an outer diameter of the hollow piston portion andis formed in a cylindrical shape and has a hole defined in a top portionthereof; a head including: a pressed portion to which external force isapplied and which is exposed out of the fluid-communication chamber; andan inserted rib which extends from a bottom of the pressed portion andis inserted into the hole defined in the head support portion; and Firstand second sealing rings spaced apart from each other in a verticaldirection and disposed around an outer surface of the hollow pistonportion.
 28. The cosmetic-fluid dispenser of claim 27, wherein thehollow piston portion has first and second lateral through-holes definedtherein in opposite lateral points of the hollow piston portionrespectively, wherein the first and second lateral through-holescommunicate with the bottom inlet hole and the inner receiving space ofthe hollow piston portion, wherein the first and second lateralthrough-holes communicate with the first and second fluid communicationchannels respectively, wherein the first sealing ring surrounds a lowerportion of an outer periphery of the hollow piston portion, while thesecond sealing ring surrounds an upper portion of the outer periphery ofthe hollow piston portion, wherein both of the first and second lateralthrough-holes are defined between the first and second sealing rings ina vertical direction, wherein each of the first and second lateralthrough-holes extends horizontally.
 29. The cosmetic-fluid dispenser ofclaim 28, wherein the first fluid communication channel communicateswith the fluid outlet structure, wherein the second fluid communicationchannel communicates with the fluid storage space defined in the mainbody, wherein each of the first and second fluid communication channelsextends in a second direction, wherein the second direction is thelongitudinal direction of the elongate main body, wherein when externalforce is applied to the actuation mechanism, the first elastic member iscompressed in a compressed mode such that the piston portion is lowered,and, thus, cosmetic fluid contained within the inner fluid receivingspace of the hollow piston portion flows through the first lateralthrough-hole and then through the first fluid communication channel,wherein at the compressed mode, the first fluid communication channeland the second fluid communication channel are positioned between thefirst and the second sealing rings at a height level thereof, whereinwhen the external force applied to the actuation mechanism is released,the first elastic member is restored at a restored mode such that thepiston portion rises up in the fluid-communication chamber, and, thus,cosmetic fluid flows from the fluid storage space of the main bodythrough the second fluid communication channel and then the secondlateral through-hole into the inner fluid receiving space of the hollowpiston portion.
 30. The cosmetic-fluid dispenser of claim 29, whereinwhen the piston portion is lowered down or raised up, the first sealingring slides along an inner circumferential face of thefluid-communication chamber, wherein when the piston portion is lowereddown or raised up, the second sealing ring slides along an innercircumferential face of the fluid-communication chamber to prevent thecosmetic fluid contained in the fluid-communication chamber from flowingout of the fluid-communication chamber, wherein the first and secondsealing rings are spaced apart from each other in a vertical direction,thereby preventing air from flowing into the fluid-communicationchamber.
 31. The cosmetic-fluid dispenser of claim 21, wherein thecosmetic-fluid dispenser comprises an elongate fluid-supply tubedetachably inserted into the inner space of the elongate main body,wherein the elongate fluid-supply tube has an elongate inner spacedefined therein, wherein the inner space of the elongate fluid-supplytube is partitioned into a first inner sub-space and a second innersub-space, wherein volumes of the first inner sub-space and the secondinner sub-space vary reversibly in a complementary manner to each other,wherein the first inner sub-space contains therein the cosmetic fluid tobe delivered into the fluid-communication chamber, while the secondsub-space contains therein air flowing from an outside of the dispenser,wherein when external force applied to the actuation mechanism isreleased, a first volume of cosmetic-fluid stored in the first innersub-space passes through the second fluid-communication channel into thefluid communication chamber, and, at the same time, the volume of thefirst inner sub-space is reduced by the first volume while the volume ofthe second inner sub-space is expanded by the first volume.
 32. Thecosmetic-fluid dispenser of claim 31, wherein an O-ring is provided onan outer face of a first longitudinal end of the cosmetic elongatefluid-supply tube, while an annular groove into which the O-ring isseated is defined in an inner face of the elongate main body such thatthe cosmetic elongate fluid-supply tube and the elongate main body aretightly coupled to each other, wherein the first longitudinal end facesthe chamber body portion, wherein a second longitudinal end of thecosmetic elongate fluid-supply tube is air-tightly blocked by a blockingportion having an air communication channel defined therein.
 33. Thecosmetic-fluid dispenser of claim 31, wherein the cosmetic-fluiddispenser comprises an elongate fluid-supply tube detachably insertedinto the inner space of the elongate main body, wherein the elongatefluid-supply tube has an elongate inner space defined therein, whereinthe inner space of the elongate fluid-supply tube is partitioned into afirst inner sub-space and a second inner sub-space by a compressingmember, wherein volumes of the first inner sub-space and the secondinner sub-space vary reversibly in a complementary manner to each other,wherein the first inner sub-space contains therein the cosmetic fluid tobe delivered into the fluid-communication chamber, while the secondsub-space contains therein air flowing from an outside of the dispenser,wherein the cosmetic elongate fluid-supply tube has a first longitudinalend facing the chamber body portion, wherein the cosmetic elongatefluid-supply tube has a sealing cap defining a second longitudinal endof the cosmetic elongate fluid-supply tube, wherein the secondlongitudinal end is opposite the first longitudinal end, wherein thesealing cap is tightly inserted into an opening in the secondlongitudinal end, wherein the sealing cap has an air communicationchannel defined therein communicating with the second inner sub-space,wherein the second inner sub-space is defined between the compressingmember and the sealing cap, wherein the volume of the first innersub-space is reduced by a first volume via movement of the compressingmember toward the first longitudinal end together with compressing thefluid in the first sub-space while the volume of the second innersub-space is forcedly expanded by the first volume via theair-communication hole allowing air-communication between the secondinner sub-space and an exterior space of the cosmetic-fluid dispenser.34. The cosmetic-fluid dispenser of claim 22, wherein the cosmetic-fluidoutlet structure includes: a distal portion defining a downstreamportion of the cosmetic-fluid outlet structure, wherein the distalportion has a fluid discharging hole in a tip end thereof fordischarging the cosmetic-fluid, wherein the fluid discharging hole isout of the inner cap; and a proximal portion defining an upstreamportion of the cosmetic-fluid outlet structure, wherein the proximalportion is inserted into an inner elongate space defined in the innercap, wherein the proximal portion has a first inserted portionconnecting the distal portion and a second inserted portion facing thefirst fluid communication channel, wherein a blocking partition isformed between the first and second inserted portions, wherein anelongate spacing is defined between an outer face of the proximalportion and an inner face of the inner elongate space defined in theinner cap, wherein a first fluid-communication space is defined in thefirst inserted portion to be in communication with the fluid discharginghole, wherein the first inserted portion has a first hole definedtherein for fluid communication between the first fluid-communicationspace and the elongate spacing, wherein the second inserted portion hasa second fluid-communication space defined therein in communication withthe first fluid communication channel, wherein the second insertedportion has a second hole defined therein for fluid-communicationbetween the second fluid-communication space and the elongate spacing,wherein hole closing/opening means is disposed in the elongate spacingand is configured to open or close the second hole to control flow ofthe cosmetic fluid through the second hole.
 35. The cosmetic-fluiddispenser of claim 34, wherein when the external force is applied to theactuation mechanism, the hole closing/opening means is elasticallydeformed by a pressure resulting from the cosmetic fluid moving from thefluid communication chamber toward a distal end of the first fluidcommunication channel, thereby to open the second hole, wherein when thepressure is deactivated, the hole closing/opening means is elasticallyrestored via a restoring force thereof, thereby to close the secondhole.
 36. The cosmetic-fluid dispenser of claim 22, wherein thecosmetic-fluid outlet structure includes: a distal portion defining adownstream portion of the cosmetic-fluid outlet structure, wherein thedistal portion has a fluid discharging hole in a tip end thereof fordischarging the cosmetic-fluid, wherein the fluid discharging hole isout of the inner cap; and a proximal portion defining an upstreamportion of the cosmetic-fluid outlet structure, wherein the proximalportion is hollow and is inserted into an inner elongate slot defined inthe inner cap, wherein the inner elongate slot communicates with thefirst fluid communication channel, and the inner elongate slot has aninner diameter larger than an inner diameter of the first fluidcommunication channel, wherein a fluid-outlet adjustment ball is movablydisposed in the hollow proximal end toward a distal end of the firstfluid communication channel, wherein the fluid-outlet adjustment ballhas a diameter greater than an inner diameter of the first fluidcommunication channel, wherein a second elastic member is disposed inthe hollow proximal end in a downstream region of the fluid-outletadjustment ball.
 37. The cosmetic-fluid dispenser of claim 36, whereinwhen the external force is applied to the actuation mechanism, thecosmetic fluid contained in the fluid communication chamber movesthrough the first fluid communication channel toward the elongate slotto forcedly move the fluid-outlet adjustment ball toward the fluiddischarging hole, thereby to compress the second elastic member, therebyto allow the cosmetic fluid to be discharged through the fluiddischarging hole, wherein when the cosmetic fluid depressurizes thefluid-outlet adjustment ball, the fluid-outlet adjustment ball moves toclose the distal end of the first fluid communication channel via arestoring force of the second elastic member.
 38. A cosmetic-fluiddispenser comprising: an elongate main body having a cosmetic-fluidstorage space defined therein to contain cosmetic fluid therein, whereinthe elongate main body has a chamber body portion; a fluid-communicationchamber defined in the chamber body portion in a first direction,wherein the first direction is a direction perpendicular to alongitudinal direction of the elongate main body; an actuation mechanismat least partially hollowed and insertable into the fluid-communicationchamber, wherein a top thereof protrudes outside the fluid-communicationchamber, and a bottom thereof is received in the fluid-communicationchamber, and has a bottom inlet hole defined therein; a first verticalelastic hollow member extending along and surrounding an upper portionof the actuation mechanism, wherein the first vertical elastic hollowmember allows reversible vertical movement of the actuation mechanism; afirst fluid communication channel defined in the chamber body portion ina direction away from the cosmetic-fluid storage space; a second fluidcommunication channel defined in the chamber body portion tofluid-communicate with the cosmetic-fluid storage space; and acosmetic-fluid outlet structure configured to communicate with the firstfluid communication channel, wherein the cosmetic-fluid outlet structurehas a fluid discharging hole defined in a distal end thereof and exposedto an outside of the dispenser, wherein a top of the chamber bodyportion has a first round concaved top portion having an opening definedtherein through which the actuation mechanism passes into the chamber,wherein an outer face of the top of the actuation mechanism has a shapeconformal to a round concaved shape of the round concaved top portion,wherein the actuation mechanism includes: a hollow piston portion formedin a cylindrical shape to be inserted into the fluid-communicationchamber, wherein the hollow piston portion has the bottom inlet holedefined in a bottom portion thereof, wherein the hollow piston portionhas a fluid receiving space defined therein; a head support portionextending upward from the hollow piston portion and having an outerdiameter smaller than an outer diameter of the hollow piston portion;and a head supported by the head support portion, wherein the firstvertical elastic hollow member has a top end contacting the head. 39.The cosmetic-fluid dispenser of claim 38, wherein the head includes: apressed portion to which an external force is applied and which isexposed out of the fluid-communication chamber; and an inserted ribextending downwards from a bottom of the pressed portion, wherein thepressed portion includes: a cap-shaped portion being circular in a crosssection and being open at a bottom thereof, and being hollow and havinga blocked top; and an annular rib protruding outward along a rim of abottom end of the cap-shaped portion, wherein the annular rib defines abottom opening of the cap-shaped portion and bears against an uppermostinner face of the fluid-communication chamber, wherein the inserted ribprotrudes downward from an inner central position of the cap-shapedportion, wherein a first engaging protrusion protrudes horizontally froman outer face of the inserted rib, wherein the head support portion hasa rib receiving hole defined in a top thereof through which the insertedrib is inserted, wherein a first engaged groove is defined radiallyoutwards in an inner face of the rib receiving hole and receives thereinthe first engaging protrusion.
 40. The cosmetic-fluid dispenser of claim39, wherein the actuation mechanism includes first and second sealingrings spaced apart from each other in a vertical direction, wherein thefirst and second sealing rings are disposed around an outer surface ofthe hollow piston portion, wherein the hollow piston portion has firstand second lateral through-holes defined therein in opposite lateralpoints of the hollow piston portion respectively, wherein the first andsecond lateral through-holes communicate with the bottom inlet hole andthe inner receiving space of the hollow piston portion, wherein thefirst and second lateral through-holes communicate with the first andsecond fluid communication channels respectively, wherein both of thefirst and second lateral through-holes are defined between the first andsecond sealing rings in a vertical direction, wherein each of the firstand second lateral through-holes extends horizontally.
 41. Thecosmetic-fluid dispenser of claim 40, wherein the first fluidcommunication channel communicates with the fluid outlet structure,wherein the second fluid communication channel communicates with thefluid storage space defined in the main body, wherein each of the firstand second fluid communication channels extends in a second direction,wherein the second direction is the longitudinal direction of theelongate main body, wherein when external force is applied to theactuation mechanism, the first elastic member is compressed in acompressed mode such that the piston portion is lowered, and, thus,cosmetic fluid contained within the inner fluid receiving space of thehollow piston portion flows through the first lateral through-hole andthen through the first fluid communication channel, wherein at thecompressed mode, the first fluid communication channel and the secondfluid communication channel are positioned between the first and thesecond sealing rings at a height level thereof, wherein when theexternal force applied to the actuation mechanism is released, the firstelastic member is restored at a restored mode such that the pistonportion rises up in the fluid-communication chamber, and, thus, cosmeticfluid flows from the fluid storage space of the main body through thesecond fluid communication channel and then the second lateralthrough-hole into the inner fluid receiving space of the hollow pistonportion.
 42. The cosmetic-fluid dispenser of claim 41, wherein when thepiston portion is lowered down or raised up, the first sealing ringslides along an inner circumferential face of the fluid-communicationchamber, wherein when the piston portion is lowered down or raised up,the second sealing ring slides along an inner circumferential face ofthe fluid-communication chamber to prevent the cosmetic fluid containedin the fluid-communication chamber from flowing out of thefluid-communication chamber, wherein the first and second sealing ringsare spaced apart from each other in a vertical direction, therebypreventing air from flowing into the fluid-communication chamber. 43.The cosmetic-fluid dispenser of claim 41, wherein each of the first andsecond fluid communication channels extends in a second direction,wherein the second direction is the longitudinal direction of theelongate main body, wherein a hollow cylindrical tube has an innerdiameter greater than an diameter of the second fluid communicationchannel, and the hollow cylindrical tube protrudes from an outer face ofthe chamber body portion into the fluid storage space defined in themain body, wherein a hollow cover portion is partially fitted into thehollow cylindrical tube and has a first opening defined at a proximalend thereof communicating with the second fluid communication channel,and has a second opening defined at a distal end thereof communicatingwith the fluid storage space, wherein closing/opening means isconfigured to reversibly open and close the second opening defined inthe cover portion, wherein the closing/opening means is disposed in thecover portion and is movable, wherein a closing/opening means stopperhas an annular shape and protrudes inwardly from an inner circumferenceof the cover portion to limit movement of the closing/opening means. 44.The cosmetic-fluid dispenser of claim 41, wherein the fluidcommunication chamber has an upper portion and a lower portion, whereinthe upper portion thereof has a larger diameter than the lower portion,wherein a spacing is defined between the first elastic member and aninner wall face of the upper portion of the fluid communication chamber.45. The cosmetic-fluid dispenser of claim 44, wherein a hollowcylindrical portion further upwards extends from an upper portion of thehollow piston portion, wherein the hollow cylindrical portion has alower portion surrounding the upper portion of the hollow pistonportion, wherein the hollow cylindrical portion is disposed in the upperportion of the fluid communication chamber.
 46. The cosmetic-fluiddispenser of claim 43, wherein the cover portion has an outer portiondisposed out of the hollow cylindrical tube, wherein the outer portiondefines the second opening defined therein, wherein the outer portionhas a hollow truncated conical shape.
 47. The cosmetic-fluid dispenserof claim 46, wherein the hollow cylindrical tube has an annular groovedefined in the inner face thereof while the cover portion has an annularprotrusion defined on an outer face thereof, wherein the annularprotrusion is engaged into the annual groove; alternatively, the hollowcylindrical tube has an annular protrusion defined on the inner facethereof while the cover portion has an annular groove defined in anouter face thereof, wherein the annular protrusion is engaged into theannual groove; and wherein the inner space of the hollow cylindricaltube is configured to fluid-communicate with the second fluidcommunication channel and to fluid-communicate with the second openingof the cover portion.
 48. The cosmetic-fluid dispenser of claim 41,wherein each of the first and second fluid communication channelsextends in a second direction, wherein the second direction is thelongitudinal direction of the elongate main body, wherein a hollowcylindrical tube has an inner diameter greater than an diameter of thesecond fluid communication channel, and the hollow cylindrical tubeprotrudes from an outer face of the chamber body portion into the fluidstorage space defined in the main body, wherein a hollow cover portionis partially fitted into the hollow cylindrical tube and has a firstopening defined at a proximal end thereof communicating with the secondfluid communication channel, and has a second opening defined at adistal end thereof communicating with the fluid storage space, whereinan inner diameter of the cover portion decreases gradually from thefirst opening thereof to the second opening thereof, wherein aclosing/opening ball is configured to reversibly open and close thesecond opening defined in the cover portion, wherein the ball isdisposed in the cover portion and is movable, wherein a spring isdisposed in the cover portion and is configured to push the ball towardthe second opening.
 49. The cosmetic-fluid dispenser of claim 48,wherein the hollow cylindrical tube has an annular groove defined in theinner face thereof while the cover portion has an annular protrusiondefined on an outer face thereof, wherein the annular protrusion isengaged into the annual groove; alternatively, the hollow cylindricaltube has an annular protrusion defined on the inner face thereof whilethe cover portion has an annular groove defined in an outer facethereof, wherein the annular protrusion is engaged into the annualgroove; and wherein the inner space of the hollow cylindrical tube isconfigured to fluid-communicate with the second fluid communicationchannel and to fluid-communicate with the second opening of the coverportion.
 50. The cosmetic-fluid dispenser of claim 38, wherein thedispenser comprises: an inner cap coupled to one longitudinal end of theelongate main body, the inner cap having a second round concaved topportion corresponding in position to the first round concaved top andhaving a shape conformal to the shape of the first round concaved topportion, wherein the second round concaved top portion has an openingdefined therein through which the actuation mechanism passes into thechamber; an outer cap having a receiving space for receiving the distalcosmetic-fluid outlet structure, wherein the outer cap is removablyengaged with the inner cap, wherein the receiving space is defined as acylindrical hollow inner space for partially receiving the inner cap.51. The cosmetic-fluid dispenser of claim 41, wherein the first elasticmember is configured such that elastic deformation of the first elasticmember allows up and down movements of the actuation mechanism to bereversible, wherein when an external force is applied to the actuationmechanism, a first volume of cosmetic fluid contained in thefluid-communication chamber flows through the first fluid communicationchannel into the cosmetic-fluid outlet structure, wherein when theexternal force applied to the actuation mechanism is released, cosmeticfluid of an amount equal to the first volume flows from thecosmetic-fluid storage space through the second fluid communicationchannel into the fluid-communication chamber.
 52. The cosmetic-fluiddispenser of claim 41, wherein the cosmetic-fluid dispenser comprises anelongate fluid-supply tube detachably inserted into the inner space ofthe elongate main body, wherein the elongate fluid-supply tube has anelongate inner space defined therein, wherein the inner space of theelongate fluid-supply tube is partitioned into a first inner sub-spaceand a second inner sub-space, wherein volumes of the first innersub-space and the second inner sub-space vary reversibly in acomplementary manner to each other, wherein the first inner sub-spacecontains therein the cosmetic fluid to be delivered into thefluid-communication chamber, while the second sub-space contains thereinair flowing from an outside of the dispenser, wherein when externalforce applied to the actuation mechanism is released, a first volume ofcosmetic-fluid stored in the first inner sub-space passes through thesecond fluid-communication channel into the fluid communication chamber,and, at the same time, the volume of the first inner sub-space isreduced by the first volume while the volume of the second innersub-space is expanded by the first volume.
 53. The cosmetic-fluiddispenser of claim 38, wherein the cosmetic-fluid dispenser comprises anelongate fluid-supply tube detachably inserted into the inner space ofthe elongate main body, wherein the elongate fluid-supply tube has anelongate inner space defined therein, wherein the inner space of theelongate fluid-supply tube is partitioned into a first inner sub-spaceand a second inner sub-space by a compressing member, wherein volumes ofthe first inner sub-space and the second inner sub-space vary reversiblyin a complementary manner to each other, wherein the first innersub-space contains therein the cosmetic fluid to be delivered into thefluid-communication chamber, while the second sub-space contains thereinair flowing from an outside of the dispenser, wherein the cosmeticelongate fluid-supply tube has a first longitudinal end facing thechamber body portion, wherein the cosmetic elongate fluid-supply tubehas a sealing cap defining a second longitudinal end of the cosmeticelongate fluid-supply tube, wherein the second longitudinal end isopposite the first longitudinal end, wherein the sealing cap is tightlyinserted into an opening in the second longitudinal end, wherein thesealing cap has an air communication channel defined thereincommunicating with the second inner sub-space, wherein the second innersub-space is defined between the compressing member and the sealing cap,wherein the volume of the first inner sub-space is reduced by a firstvolume via movement of the compressing member toward the firstlongitudinal end together with compressing the fluid in the firstsub-space while the volume of the second inner sub-space is forcedlyexpanded by the first volume via the air-communication hole allowingair-communication between the second inner sub-space and an exteriorspace of the cosmetic-fluid dispenser.
 54. The cosmetic-fluid dispenserof claim 52, wherein an O-ring is provided on an outer face of a firstlongitudinal end of the cosmetic elongate fluid-supply tube, while anannular groove into which the O-ring is seated is defined in an innerface of the elongate main body such that the cosmetic elongatefluid-supply tube and the elongate main body are tightly coupled to eachother, wherein the first longitudinal end faces the chamber bodyportion, wherein a second longitudinal end of the cosmetic elongatefluid-supply tube is air-tightly blocked by a blocking portion having anair communication channel defined therein.
 55. The cosmetic-fluiddispenser of claim 38, wherein the cosmetic-fluid outlet structureincludes: a distal portion defining a downstream portion of thecosmetic-fluid outlet structure, wherein the distal portion has a fluiddischarging hole in a tip end thereof for discharging thecosmetic-fluid, wherein the fluid discharging hole is out of the innercap; and a proximal portion defining an upstream portion of thecosmetic-fluid outlet structure, wherein the proximal portion isinserted into an inner elongate space defined in the inner cap, whereinthe proximal portion has a first inserted portion connecting the distalportion and a second inserted portion facing the first fluidcommunication channel, wherein a blocking partition is formed betweenthe first and second inserted portions, wherein an elongate spacing isdefined between an outer face of the proximal portion and an inner faceof the inner elongate space defined in the inner cap, wherein a firstfluid-communication space is defined in the first inserted portion to bein communication with the fluid discharging hole, wherein the firstinserted portion has a first hole defined therein for fluidcommunication between the first fluid-communication space and theelongate spacing, wherein the second inserted portion has a secondfluid-communication space defined therein in communication with thefirst fluid communication channel, wherein the second inserted portionhas a second hole defined therein for fluid-communication between thesecond fluid-communication space and the elongate spacing, wherein holeclosing/opening means is disposed in the elongate spacing and isconfigured to open or close the second hole to control flow of thecosmetic fluid through the second hole.
 56. The cosmetic-fluid dispenserof claim 55, wherein when the external force is applied to the actuationmechanism, the hole closing/opening means is elastically deformed by apressure resulting from the cosmetic fluid moving from the fluidcommunication chamber toward a distal end of the first fluidcommunication channel, thereby to open the second hole, wherein when thepressure is deactivated, the hole closing/opening means is elasticallyrestored via a restoring force thereof, thereby to close the secondhole.
 57. The cosmetic-fluid dispenser of claim 55, wherein thecosmetic-fluid outlet structure includes: a distal portion defining adownstream portion of the cosmetic-fluid outlet structure, wherein thedistal portion has a fluid discharging hole in a tip end thereof fordischarging the cosmetic-fluid, wherein the fluid discharging hole isout of the inner cap; and a proximal portion defining an upstreamportion of the cosmetic-fluid outlet structure, wherein the proximalportion is hollow and is inserted into an inner elongate slot defined inthe inner cap, wherein the inner elongate slot communicates with thefirst fluid communication channel, and the inner elongate slot has aninner diameter larger than an inner diameter of the first fluidcommunication channel, wherein a fluid-outlet adjustment ball is movablydisposed in the hollow proximal end toward a distal end of the firstfluid communication channel, wherein the fluid-outlet adjustment ballhas a diameter greater than an inner diameter of the first fluidcommunication channel, wherein a second elastic member is disposed inthe hollow proximal end in a downstream region of the fluid-outletadjustment ball.
 58. The cosmetic-fluid dispenser of claim 57, whereinwhen the external force is applied to the actuation mechanism, thecosmetic fluid contained in the fluid communication chamber movesthrough the first fluid communication channel toward the elongate slotto forcedly move the fluid-outlet adjustment ball toward the fluiddischarging hole, thereby to compress the second elastic member, therebyto allow the cosmetic fluid to be discharged through the fluiddischarging hole, wherein when the cosmetic fluid depressurizes thefluid-outlet adjustment ball, the fluid-outlet adjustment ball moves toclose the distal end of the first fluid communication channel via arestoring force of the second elastic member.